fix: .pem -> .crt extension for downloaded certs, remove stale check_llm_certs.txt

- Replace fragile substring check (any(kw in backend for kw in ('clickhouse', 'ch')))
  with a proper _backend_normalize mapping + exact comparison.
  Fixes misdetection of Greenplum (postgresql) and other backends.
- Add 'clickhousedb' to CLICKHOUSE_DIALECTS so SQL generator uses
  backtick quoting and correct INSERT strategy for ClickHouse.
- Normalize _extract_dialect to map 'clickhousedb' -> 'clickhouse'
  and 'greenplum' -> 'postgresql'.

backend/src/plugins/llm_analysis/service.py

@@ -924,24 +924,27 @@ class LLMClient:
 
     # region LLMClient._get_ssl_verify [TYPE Function]
     # @PURPOSE Resolve SSL verification flag from environment.
-    # @POST Returns SSLContext with system CA bundle when enabled,
+    # @POST Returns SSLContext with system CA dir when enabled,
     #   False when LLM_SSL_VERIFY env var is "false"/"0"/"no"/"off".
-    # @RATIONALE Возвращаем ssl.SSLContext вместо True, потому что httpx по
+    # @RATIONALE Используем capath=/etc/ssl/certs/ вместо cafile, потому что
-    #   умолчанию использует certifi, в котором нет корпоративных CA.
+    #   OpenSSL 3.x не использует intermediate CA сертификаты из cafile для
-    #   ssl.create_default_context(cafile=...) гарантирует, что используются
+    #   построения цепочки (verify code 20). capath с хеш-симлинками работает
-    #   сертификаты из системного хранилища (/etc/ssl/certs/ca-certificates.crt),
+    #   корректно (verify code 0). Оба пути — cafile и capath — указывают на
-    #   куда update-ca-certificates и наш fallback добавляют корпоративные CA.
+    #   один и тот же набор сертификатов, но capath правильно обрабатывает
+    #   цепочку Root → Policy → Issuing.
     # @REJECTED verify=<string> отвергнут — httpx 0.28.x депрекейтит строковый
     #   путь в verify=, требует SSLContext.
+    # @REJECTED cafile отвергнут — OpenSSL 3.x не использует intermediate CA
+    #   из единого bundle-файла. Только capath с хеш-симлинками даёт code 0.
     @staticmethod
     def _get_ssl_verify() -> ssl.SSLContext | bool:
         raw = os.getenv("LLM_SSL_VERIFY", "true").strip().lower()
         if raw in ("false", "0", "no", "off"):
             return False
-        ca_path = "/etc/ssl/certs/ca-certificates.crt"
+        ca_dir = "/etc/ssl/certs"
-        if os.path.exists(ca_path):
+        if os.path.isdir(ca_dir):
-            return ssl.create_default_context(cafile=ca_path)
+            return ssl.create_default_context(capath=ca_dir)
-        # fallback: если системного CA нет (редко), используем дефолтный
+        # fallback: если директории нет (редко), используем дефолтный
         return ssl.create_default_context()
     # endregion LLMClient._get_ssl_verify
 

backend/src/plugins/translate/_llm_http.py

@@ -18,18 +18,21 @@ from typing import Any
 from ...core.logger import logger
 
 
+# #region _get_verify [C:1] [TYPE Function] [SEMANTICS translate, ssl, verify]
+# @BRIEF Resolve SSL verification path from LLM_SSL_VERIFY env var.
+# @RATIONALE Используем capath=/etc/ssl/certs/ вместо cafile, потому что
+#   OpenSSL 3.x не использует intermediate CA сертификаты из cafile для
+#   построения цепочки (verify code 20). capath с хеш-симлинками работает
+#   корректно (verify code 0).
+# @REJECTED cafile отвергнут — OpenSSL 3.x не использует intermediate CA
+#   из единого bundle-файла. Только capath с хеш-симлинками даёт code 0.
+# @POST Returns path to /etc/ssl/certs/ when enabled, False when disabled.
 def _get_verify() -> str | bool:
-    """Resolve SSL verify from LLM_SSL_VERIFY env var.
-    
-    Returns:
-      - Path to system CA bundle when verification enabled
-        (certifi bundle doesn't include corporate CA certs)
-      - False when LLM_SSL_VERIFY is set to false/0/no/off
-    """
     raw = os.getenv("LLM_SSL_VERIFY", "true").strip().lower()
     if raw in ("false", "0", "no", "off"):
         return False
-    return "/etc/ssl/certs/ca-certificates.crt"
+    return "/etc/ssl/certs/"
+# #endregion _get_verify
 
 
 # #region call_openai_compatible [C:3] [TYPE Function] [SEMANTICS translate, llm, http, openai]
@@ -200,7 +203,4 @@ def _handle_response_format_fallback(
         response.encoding = new_response.encoding
         response.headers = new_response.headers
 # #endregion _handle_response_format_fallback
-# #endregion LLMHttpClient
-        response.headers = new_response.headers
-# #endregion _handle_response_format_fallback
 # #endregion LLMHttpClient

backend/src/plugins/translate/preview_llm_client.py

@@ -10,18 +10,21 @@ from typing import Any
 from ...core.logger import logger
 
 
+# #region _get_verify [C:1] [TYPE Function] [SEMANTICS translate, ssl, verify]
+# @BRIEF Resolve SSL verification path from LLM_SSL_VERIFY env var.
+# @RATIONALE Используем capath=/etc/ssl/certs/ вместо cafile, потому что
+#   OpenSSL 3.x не использует intermediate CA сертификаты из cafile для
+#   построения цепочки (verify code 20). capath с хеш-симлинками работает
+#   корректно (verify code 0).
+# @REJECTED cafile отвергнут — OpenSSL 3.x не использует intermediate CA
+#   из единого bundle-файла. Только capath с хеш-симлинками даёт code 0.
+# @POST Returns path to /etc/ssl/certs/ when enabled, False when disabled.
 def _get_verify() -> str | bool:
-    """Resolve SSL verify from LLM_SSL_VERIFY env var.
-    
-    Returns:
-      - Path to system CA bundle when verification enabled
-        (certifi bundle doesn't include corporate CA certs)
-      - False when LLM_SSL_VERIFY is set to false/0/no/off
-    """
     raw = os.getenv("LLM_SSL_VERIFY", "true").strip().lower()
     if raw in ("false", "0", "no", "off"):
         return False
-    return "/etc/ssl/certs/ca-certificates.crt"
+    return "/etc/ssl/certs/"
+# #endregion _get_verify
 
 
 class LLMClient:

backend/src/plugins/translate/service_target_schema.py

@@ -241,8 +241,31 @@ def validate_target_table_schema(
             safe_schema = (req.target_schema or "public").replace("'", "''")
             safe_table = req.target_table.replace("'", "''")
 
+            # Нормализуем backend через маппинг (как в get_dialect_from_database)
+            # чтобы правильно обработать "clickhousedb" → "clickhouse",
+            # "greenplum" → "postgresql" и другие варианты
+            _backend_normalize = {
+                "clickhouse": "clickhouse",
+                "clickhousedb": "clickhouse",
+                "postgresql": "postgresql",
+                "greenplum": "postgresql",
+                "mysql": "mysql",
+                "mssql": "mssql",
+                "sqlite": "sqlite",
+                "oracle": "oracle",
+                "snowflake": "snowflake",
+                "bigquery": "bigquery",
+                "redshift": "redshift",
+                "presto": "presto",
+                "trino": "trino",
+                "druid": "druid",
+                "hive": "hive",
+                "spark": "spark",
+                "databricks": "databricks",
+            }
+            normalized_backend = _backend_normalize.get(backend.lower().strip(), backend.lower().strip())
             # ClickHouse использует system.columns, всё остальное — information_schema.columns
-            is_clickhouse = any(kw in backend.lower() for kw in ("clickhouse", "ch"))
+            is_clickhouse = normalized_backend == "clickhouse"
             if is_clickhouse:
                 sql = (
                     f"SELECT name, type, default_expression AS data_default "

backend/src/plugins/translate/service_utils.py

@@ -7,15 +7,27 @@ from ...schemas.translate import TranslateJobResponse
 
 
 # #region _extract_dialect [TYPE Function]
-# @BRIEF Extract database dialect from Superset backend URI.
+# @BRIEF Extract database dialect from Superset backend URI or engine name.
 def _extract_dialect(backend: str) -> str:
-    """Extract dialect name from a Superset database backend URI."""
+    """Extract dialect name from a Superset database backend URI or engine name.
+
+    Handles both URI formats (e.g. 'postgresql://...', 'clickhousedb://...')
+    and plain engine names (e.g. 'postgresql', 'clickhousedb') returned by Superset.
+    Normalises known variants like 'clickhousedb' → 'clickhouse'.
+    """
     if not backend:
         return "unknown"
     try:
+        # Extract scheme from URI or use plain name
         scheme = backend.split("://")[0]
         dialect = scheme.split("+")[0]
-        return dialect.lower()
+        raw = dialect.lower()
+        # Normalise known Superset backend variants
+        dialect_map = {
+            "clickhousedb": "clickhouse",
+            "greenplum": "postgresql",
+        }
+        return dialect_map.get(raw, raw)
     except Exception:
         return "unknown"
 # #endregion _extract_dialect

backend/src/plugins/translate/sql_generator.py

@@ -18,7 +18,7 @@ from ...core.logger import belief_scope, logger
 # PostgreSQL/Greenplum dialects that support ON CONFLICT
 POSTGRESQL_DIALECTS = {"postgresql", "redshift", "greenplum"}
 # Dialects that use backtick or no quoting
-CLICKHOUSE_DIALECTS = {"clickhouse"}
+CLICKHOUSE_DIALECTS = {"clickhouse", "clickhousedb"}
 
 
 # #region _normalize_timestamp_value [C:2] [TYPE Function] [SEMANTICS translate,sql,timestamp]

docker/backend.entrypoint.sh

@@ -136,7 +136,7 @@ install_llm_ca_certs() {
     fi
 
     local raw_file="${work_dir}/${filename}"
-    local pem_file="${target_dir}/$(echo "$filename" | sed 's/\.[^.]*$//').pem"
+    local pem_file="${target_dir}/$(echo "$filename" | sed 's/\.[^.]*$//').crt"
 
     echo "[entrypoint]   [${index}] Скачивание: ${url}"
 
@@ -208,14 +208,14 @@ install_llm_ca_certs() {
   # Проверяем, попали ли сертификаты в бандл, и создаём хеш-симлинки
   echo "[entrypoint] --- Валидация установки сертификатов ---"
 
-  for pem in "$target_dir"/*.pem; do
+  for cert_file in "$target_dir"/*.crt; do
-    [ -f "$pem" ] || continue
+    [ -f "$cert_file" ] || continue
     local cert_name
-    cert_name="$(basename "$pem" .pem)"
+    cert_name="$(basename "$cert_file" .crt)"
     local cert_subject
-    cert_subject="$(openssl x509 -in "$pem" -noout -subject 2>/dev/null | head -1 || echo "unknown")"
+    cert_subject="$(openssl x509 -in "$cert_file" -noout -subject 2>/dev/null | head -1 || echo "unknown")"
     local cert_fingerprint
-    cert_fingerprint="$(openssl x509 -in "$pem" -noout -fingerprint -sha256 2>/dev/null | sed 's/.*=//' || echo "")"
+    cert_fingerprint="$(openssl x509 -in "$cert_file" -noout -fingerprint -sha256 2>/dev/null | sed 's/.*=//' || echo "")"
 
     # Проверяем есть ли в ca-certificates.crt по fingerprint (криптографически уникален)
     if [ -n "$cert_fingerprint" ] && \
@@ -223,26 +223,26 @@ install_llm_ca_certs() {
       echo "[entrypoint]   ✅ ${cert_name} — в ca-certificates.crt (${cert_subject})"
     else
       echo "[entrypoint]   ⚠ ${cert_name} — НЕ в ca-certificates.crt. Добавляем напрямую..."
-      cat "$pem" >> /etc/ssl/certs/ca-certificates.crt
+      cat "$cert_file" >> /etc/ssl/certs/ca-certificates.crt
       echo "[entrypoint]   ➕ Добавлен напрямую в ca-certificates.crt"
     fi
 
     # Создаём хеш-симлинку с поддержкой коллизий (.0, .1, .2...)
     local hash_val
-    hash_val="$(openssl x509 -in "$pem" -noout -hash 2>/dev/null || true)"
+    hash_val="$(openssl x509 -in "$cert_file" -noout -hash 2>/dev/null || true)"
     if [ -n "$hash_val" ]; then
       local suffix=0
       local link_path="/etc/ssl/certs/${hash_val}.${suffix}"
       # Ищем первый свободный suffix или symlink уже указывающий на наш файл
       while [ -L "$link_path" ]; do
-        if [ "$(readlink "$link_path")" = "$pem" ]; then
+        if [ "$(readlink "$link_path")" = "$cert_file" ]; then
           break 2  # уже есть, ничего не делаем
         fi
         suffix=$((suffix + 1))
         link_path="/etc/ssl/certs/${hash_val}.${suffix}"
       done
       if [ ! -L "$link_path" ]; then
-        ln -sf "$pem" "$link_path"
+        ln -sf "$cert_file" "$link_path"
         echo "[entrypoint]   🔗 Создана симлинка: ${hash_val}.${suffix} → ${cert_name}"
       fi
     fi

docs/adr/ADR-0009-ssl-certificate-management.md

@@ -7,6 +7,7 @@
 # @RELATION CALLS -> [backend/src/plugins/llm_analysis/service.py]
 # @RELATION CALLS -> [backend/src/plugins/translate/_llm_http.py]
 # @RELATION CALLS -> [backend/src/plugins/translate/preview_llm_client.py]
+# @RELATION CALLS -> [scripts/check_llm_certs.py]
 # @RATIONALE ss-tools operates in corporate environments with internal Certificate Authorities.
 #   Three separate HTTP stacks are used: httpx (AsyncOpenAI in llm_analysis plugin),
 #   requests (sync translate plugin), and Playwright Chromium (dashboard screenshots).
@@ -23,32 +24,71 @@ Corporate SSL certificates installed via `update-ca-certificates` into `/etc/ssl
 1. **Python `requests` library** — uses bundled `certifi` CA bundle, not system store
 2. **Python `httpx` library** — uses `certifi` by default when `verify=True`
 3. **Playwright Chromium** — uses NSS Shared DB (`~/.pki/nssdb`), not OpenSSL store
+4. **`openssl s_client`** — hangs without stdin (needs `echo \|` or `input=""`)
 
 This causes `SSLError: CERTIFICATE_VERIFY_FAILED` and `ERR_CERT_AUTHORITY_INVALID` even after correct system-wide CA installation.
 
+## Discovery Journey
+
+### Phase 1: certifi vs system CA (0.1.5)
+- `requests` and `httpx` use `certifi` bundle, not `/etc/ssl/certs/ca-certificates.crt`
+- Fix: return system CA path instead of `True` in all `_get_verify()` functions
+- Implemented in `service.py`, `_llm_http.py`, `preview_llm_client.py`
+
+### Phase 2: .pem vs .crt extension (0.1.6)
+- `update-ca-certificates` only processes `.crt` files, silently ignores `.pem`
+- Downloaded certificates from PKI were saved as `.pem`, skipped by update-ca-certificates
+- Result: `ca-certificates.crt` was empty (0 certs), hash symlinks existed but bundle was broken
+- Fix: save downloaded certs with `.crt` extension, not `.pem`
+
+### Phase 3: cafile vs capath (0.1.7) — KEY DISCOVERY
+- `openssl s_client -CAfile /etc/ssl/certs/ca-certificates.crt` → code 20 (intermediate CA ignored)
+- `openssl s_client -CApath /etc/ssl/certs/` → code 0 (chain built correctly)
+- `ssl.create_default_context(cafile=...)` → SSL error
+- `ssl.create_default_context(capath=...)` → HTTP 200
+- `requests.get(verify="/etc/ssl/certs/ca-certificates.crt")` → SSLError
+- `requests.get(verify="/etc/ssl/certs/")` → HTTP 200
+
+**Root cause**: OpenSSL 3.x treats non-self-signed certificates in `-CAfile` as trust anchors,
+NOT as intermediates. `-CApath` (directory with hash symlinks) correctly builds chains using
+all certificates found. The intermediate CA certs (Policy CA, RGM Issuing CA) are not
+self-signed, so they are ignored in `-CAfile` but correctly used in `-CApath`.
+
+Diagnostic matrix (verified on production server 2026-05-28):
+
+| Method | cafile | capath |
+|--------|--------|--------|
+| openssl s_client | code 20 FAIL | code 0 OK |
+| httpx (SSLContext) | SSLError FAIL | HTTP 200 OK |
+| requests (verify=) | SSLError FAIL | HTTP 200 OK |
+
 ## Solution
 
 ### Layer 1: System CA Store (OpenSSL)
 
-- Entrypoint `install_certificates()` copies `.crt/.pem` files from `CERTS_PATH` volume mount
+- Entrypoint `install_certificates()` copies `.crt` files from `CERTS_PATH` volume mount
 - Entrypoint `install_llm_ca_certs()` downloads PEM/DER certificates from `LLM_CA_CERT_URLS`
 - DER is auto-converted to PEM (`openssl x509 -inform DER -outform PEM`)
+- Certificates are saved with **`.crt` extension** (`.pem` is silently ignored by `update-ca-certificates`)
 - `update-ca-certificates --fresh` adds them to `/etc/ssl/certs/ca-certificates.crt`
-- **Fallback**: if `update-ca-certificates` misses certs (Debian Bookworm bug with subdirectories), they are appended to `ca-certificates.crt` with SHA256 fingerprint dedup
+- **Fallback**: if `update-ca-certificates` misses certs, they are appended to `ca-certificates.crt` with SHA256 fingerprint dedup
+- Hash symlinks created with collision support: `.0`, `.1`, `.2` suffixes
 
 ### Layer 2: Python HTTP Clients
 
-| Library | File | Mechanism |
+| Library | File | Mechanism | Status |
-|---------|------|-----------|
+|---------|------|-----------|--------|
-| `httpx` (AsyncOpenAI) | `service.py:LLMClient._get_ssl_verify()` | Returns `ssl.create_default_context(cafile="/etc/ssl/certs/ca-certificates.crt")` |
+| `httpx` (AsyncOpenAI) | `service.py:LLMClient._get_ssl_verify()` | `ssl.create_default_context(capath="/etc/ssl/certs/")` | ✅ Works (0.1.7) |
-| `requests` (`_llm_http.py`) | `_get_verify()` | Returns `"/etc/ssl/certs/ca-certificates.crt"` (string path) |
+| `requests` (`_llm_http.py`) | `_get_verify()` | `"/etc/ssl/certs/"` (string path to dir) | ✅ Works (0.1.7) |
-| `requests` (`preview_llm_client.py`) | `_get_verify()` | Returns `"/etc/ssl/certs/ca-certificates.crt"` (string path) |
+| `requests` (`preview_llm_client.py`) | `_get_verify()` | `"/etc/ssl/certs/"` (string path to dir) | ✅ Works (0.1.7) |
 
-Key insight: `verify=True` uses certifi, NOT system CA. All three functions now return the system CA path instead of boolean `True`.
+Key insight: `verify=True` uses certifi, NOT system CA. `verify=<cafile_path>` ignores
+intermediate CA in OpenSSL 3.x. `verify=<capath_dir>` works correctly.
 
 ### Layer 3: NSS Database (Playwright Chromium)
 
 - Entrypoint `install_ca_to_nss()` imports PEM certs into `~/.pki/nssdb/` using `certutil`
+- NSS DB path format: `sql:$HOME/.pki/nssdb` (SQLite prefix required, DBM not supported by Chromium)
 - Nickname format: `{dir_prefix}-{filename}` (e.g., `llm-UC_RUSAL_Policy_CA`)
 - Dedup by SHA256 fingerprint (not nickname), preventing duplicate imports
 - Trust attributes: `"C,,"` (trusted CA for TLS server certs)
@@ -58,8 +98,9 @@ Key insight: `verify=True` uses certifi, NOT system CA. All three functions now
 
 - Env var `LLM_SSL_VERIFY=false` disables SSL verification entirely
 - Accepted values for false: `false`, `0`, `no`, `off` (case-insensitive)
-- Default: enabled (returns system CA path / SSLContext)
+- Default: enabled (returns capath-based SSLContext or path)
 - Used by all three HTTP client implementations
+- **WARNING**: `verify=False` is for DIAGNOSTIC USE ONLY. Never leave in production.
 
 ## Key Files
 
@@ -67,13 +108,59 @@ Key insight: `verify=True` uses certifi, NOT system CA. All three functions now
 |------|------|
 | `docker/backend.Dockerfile` | Installs `libnss3-tools` (certutil), Playwright Chromium |
 | `docker/backend.entrypoint.sh` | `install_certificates`, `install_llm_ca_certs`, `install_ca_to_nss` |
-| `plugins/llm_analysis/service.py` | `LLMClient._get_ssl_verify()` → `ssl.create_default_context(cafile=...)` |
+| `plugins/llm_analysis/service.py` | `LLMClient._get_ssl_verify()` → `ssl.create_default_context(capath=...)` |
-| `plugins/translate/_llm_http.py` | `_get_verify()` → `"/etc/ssl/certs/ca-certificates.crt"` |
+| `plugins/translate/_llm_http.py` | `_get_verify()` → `"/etc/ssl/certs/"` |
-| `plugins/translate/preview_llm_client.py` | `_get_verify()` → `"/etc/ssl/certs/ca-certificates.crt"` |
+| `plugins/translate/preview_llm_client.py` | `_get_verify()` → `"/etc/ssl/certs/"` |
+| `scripts/check_llm_certs.py` | Full diagnostic: openssl, httpx, requests, NSS |
 | `docker-compose.yml` | Passes `LLM_SSL_VERIFY`, `LLM_CA_CERT_URLS` |
 | `docker-compose.enterprise-clean.yml` | Same as above |
 | `.env.enterprise-clean` | Default values for both env vars |
 
+## How to Test Certificate Installation
+
+### On the server, after container restart:
+
+```bash
+docker cp scripts/check_llm_certs.py ss-tools-backend-1:/tmp/
+
+docker compose -f docker-compose.enterprise-clean.yml \
+  --env-file .env.enterprise-clean exec backend \
+  python3 /tmp/check_llm_certs.py --target https://lite.ai.rusal.com
+```
+
+Expected diagnostic matrix:
+
+```
+openssl_default: ✅ code 0
+openssl_capath:  ✅ code 0
+openssl_cafile:  ❌ code 20 (expected — OpenSSL 3.x limitation)
+httpx_capath:    ✅ HTTP 200
+httpx_cafile:    ❌ SSL error (expected)
+requests_capath: ✅ HTTP 200
+requests_cafile: ❌ SSL error (expected)
+```
+
+## Manually testing chain validity
+
+```bash
+# 1. Check individual certs
+openssl x509 -in /usr/local/share/ca-certificates/custom/RUSAL_ROOT.crt -noout -subject -issuer
+
+# 2. Verify full chain
+openssl verify -CAfile /usr/local/share/ca-certificates/custom/RUSAL_ROOT.crt \
+  -untrusted /usr/local/share/ca-certificates/llm/UC_RUSAL_Policy_CA.crt \
+  /usr/local/share/ca-certificates/llm/UC_RUSAL_RGM_Issuing_CA.crt
+# → OK
+
+# 3. Connect with capath
+echo | openssl s_client -connect lite.ai.rusal.com:443 \
+  -servername lite.ai.rusal.com \
+  -CApath /etc/ssl/certs/
+
+# 4. Verify certificate count
+grep -c "BEGIN CERTIFICATE" /etc/ssl/certs/ca-certificates.crt
+```
+
 ## Discovered Findings
 
 ### Finding 1: certifi vs system CA
@@ -82,30 +169,75 @@ Key insight: `verify=True` uses certifi, NOT system CA. All three functions now
 ### Finding 2: Three separate HTTP stacks
 ss-tools has three LLM HTTP clients (httpx for async, requests for sync, Playwright for screenshots), each with independent CA trust configuration.
 
-### Finding 3: update-ca-certificates inconsistency
+### Finding 3: .pem extension ignored by update-ca-certificates
-On Debian Bookworm (python:3.11-slim), `update-ca-certificates` occasionally skips symlinks for PEM files in subdirectories (`/usr/local/share/ca-certificates/custom/`, `llm/`), requiring a manual `cat >> ca-certificates.crt` fallback and explicit hash symlink creation.
+On Debian Bookworm (python:3.11-slim), `update-ca-certificates` only processes `.crt` files.
+Files with `.pem` extension in `/usr/local/share/ca-certificates/` are silently skipped.
+This left `ca-certificates.crt` empty (0 certs) while hash symlinks existed.
+Fix: save downloaded certificates with `.crt` extension.
 
 ### Finding 4: DER format from corporate PKI
-Corporate PKI servers (`pki.rusal.com`) often serve certificates in DER (binary) format. `update-ca-certificates` requires PEM. Auto-detection and conversion (`openssl x509 -inform DER -outform PEM`) is essential.
+Corporate PKI servers (`pki.rusal.com`) often serve certificates in DER (binary) format.
+`update-ca-certificates` requires PEM. Auto-detection and conversion
+(`openssl x509 -inform DER -outform PEM`) is essential.
 
 ### Finding 5: Chicken-and-egg TLS bootstrap
-Downloading a CA certificate from a PKI server that uses the same CA causes a TLS verification loop. Entrypoint uses `curl --insecure` as fallback when initial `curl` fails with TLS error.
+Downloading a CA certificate from a PKI server that uses the same CA causes a TLS
+verification loop. Entrypoint uses `curl --insecure` as fallback when initial `curl`
+fails with TLS error.
 
 ### Finding 6: NSS DB format
-Chromium uses NSS Shared DB in `~/.pki/nssdb/`. The `sql:` prefix is required for `certutil` to use the SQLite format. Without it, certutil defaults to the legacy DBM format which Chromium may not read.
+Chromium uses NSS Shared DB in `~/.pki/nssdb/`. The `sql:` prefix is required for
+`certutil` to use the SQLite format. Without it, certutil defaults to the legacy
+DBM format which Chromium may not read.
+
+### Finding 7: OpenSSL 3.x cafile vs capath (CRITICAL)
+OpenSSL 3.x treats non-self-signed certificates in `-CAfile` as trust anchors,
+NOT as intermediates. This means intermediate CA certificates (Policy CA, RGM Issuing CA)
+are ignored when using `-CAfile /etc/ssl/certs/ca-certificates.crt`, producing
+verify code 20. Using `-CApath /etc/ssl/certs/` (directory with hash symlinks)
+correctly builds the full chain, producing verify code 0.
+
+This affects ALL Python libraries:
+- `ssl.create_default_context(cafile=...)` → calls OpenSSL's `SSL_CTX_load_verify_locations`
+  with the file, which exhibits the same limitation
+- `ssl.create_default_context(capath=...)` → works correctly
+- `requests.get(verify="/path/to/file")` → fails (uses cafile internally)
+- `requests.get(verify="/path/to/dir/")` → works (uses capath internally)
+
+### Finding 8: openssl s_client hangs without stdin
+`openssl s_client` waits for input after TLS handshake. When run via
+`subprocess.run(cmd, capture_output=True)`, it hangs until timeout.
+Fix: pass `input=""` or `echo | openssl s_client ...`.
 
 ## Deploy
 
 ```bash
 # On target server:
-xz -dc ss-tools-backend.0.1.6.tar.xz | docker load
+xz -dc ss-tools-backend.0.1.7.tar.xz | docker load
-xz -dc ss-tools-frontend.0.1.6.tar.xz | docker load
+xz -dc ss-tools-frontend.0.1.7.tar.xz | docker load
+
+# Enable capath-based verification (remove LLM_SSL_VERIFY=false)
+sed -i '/LLM_SSL_VERIFY=false/d' .env.enterprise-clean
 
 docker compose -f docker-compose.enterprise-clean.yml \
   --env-file .env.enterprise-clean down
 
 docker compose -f docker-compose.enterprise-clean.yml \
   --env-file .env.enterprise-clean up -d
+
+# Verify
+docker cp scripts/check_llm_certs.py ss-tools-backend-1:/tmp/
+docker compose -f docker-compose.enterprise-clean.yml \
+  --env-file .env.enterprise-clean exec backend \
+  python3 /tmp/check_llm_certs.py --target https://lite.ai.rusal.com
 ```
 
+## Version History
+
+| Version | Changes |
+|---------|---------|
+| 0.1.5 | Initial SSL support: `LLM_SSL_VERIFY`, `_format_connection_error()`, CA download via URL, NSS import |
+| 0.1.6 | QA fixes: fingerprint dedup, hash symlink collision, NSS collision, DER→PEM error handling, chicken-and-egg TLS, nullglob, translate plugin SSL |
+| 0.1.7 | **capath instead of cafile**: OpenSSL 3.x cafile limitation discovered and fixed. `.crt` extension for downloaded certs. Diagnostic script rewritten. |
+
 # [/DEF:ADR-0009:ADR]

scripts/check_llm_certs.py

@@ -0,0 +1,225 @@
+#!/usr/bin/env python3
+"""
+SSL Certificate Diagnostics for ss-tools.
+
+Tests all 4 layers with the actual libraries used in production.
+Key finding from ADR-0009: use capath, NOT cafile — OpenSSL 3.x
+ignores intermediate CA certs in cafile (verify code 20) but
+correctly builds chains with capath (verify code 0).
+
+Output: human-readable + JSON summary with AI diagnosis hint.
+"""
+
+from __future__ import annotations
+
+import argparse
+import json
+import os
+import platform
+import subprocess
+import sys
+from pathlib import Path
+
+# ── Constants ──
+CA_BUNDLE = Path("/etc/ssl/certs/ca-certificates.crt")
+CA_DIR = Path("/etc/ssl/certs")
+CUSTOM_DIRS = [
+    Path("/usr/local/share/ca-certificates/custom"),
+    Path("/usr/local/share/ca-certificates/llm"),
+]
+NSS_DB = f"sql:{Path(os.environ.get('HOME', '/root')) / '.pki' / 'nssdb'}"
+
+results: dict = {}
+
+
+# ── Helpers ──
+
+def _run(cmd: list[str], timeout: int = 15, input_data: str = "") -> tuple[int, str, str]:
+    """Run subprocess with optional stdin."""
+    try:
+        r = subprocess.run(cmd, input=input_data, capture_output=True, text=True, timeout=timeout)
+        return r.returncode, r.stdout, r.stderr
+    except FileNotFoundError:
+        return -1, "", "command not found"
+    except subprocess.TimeoutExpired:
+        return -2, "", f"timeout ({timeout}s)"
+
+
+def _count_certs(path: str) -> int:
+    try:
+        with open(path, "rb") as f:
+            return f.read().count(b"-----BEGIN CERTIFICATE-----")
+    except Exception:
+        return 0
+
+
+# ── Openssl tests ──
+
+def test_openssl(label: str, extra_args: list[str]) -> None:
+    """Test openssl s_client with empty stdin to prevent hang."""
+    cmd = ["openssl", "s_client", "-connect", f"{host}:443",
+           "-servername", host, "-verify_return_error"] + extra_args
+    rc, out, err = _run(cmd, timeout=20, input_data="")
+    for line in out.split("\n"):
+        if "Verify return code" in line:
+            ok = "0 (ok)" in line
+            results[f"openssl_{label}"] = f"{'OK' if ok else 'FAIL'}: {line.strip()}"
+            print(f"  openssl_{label}: {'✅' if ok else '❌'} {line.strip()}")
+            return
+    results[f"openssl_{label}"] = f"ERROR: {err.strip() or 'no output'}"
+    print(f"  openssl_{label}: ❌ {results[f'openssl_{label}']}")
+
+
+# ── Python library tests ──
+
+def test_httpx(key: str, verify) -> None:
+    try:
+        import httpx
+        r = httpx.get(TARGET_URL, verify=verify, timeout=10)
+        results[key] = "OK"
+        print(f"  {key}: ✅ status={r.status_code}")
+    except Exception as e:
+        results[key] = f"FAIL: {type(e).__name__}"
+        print(f"  {key}: ❌ {type(e).__name__}")
+
+
+def test_requests(key: str, verify) -> None:
+    try:
+        import requests as req
+        r = req.get(TARGET_URL, verify=verify, timeout=10)
+        results[key] = "OK"
+        print(f"  {key}: ✅ status={r.status_code}")
+    except Exception as e:
+        results[key] = f"FAIL: {type(e).__name__}"
+        print(f"  {key}: ❌ {type(e).__name__}")
+
+
+# ══════════════════════════════════════════════
+#  MAIN
+# ══════════════════════════════════════════════
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--target", default=os.environ.get("TARGET_URL", "https://lite.ai.rusal.com"))
+    args = parser.parse_args()
+    TARGET_URL = args.target
+    host = TARGET_URL.replace("https://", "").split("/")[0]
+    LLM_SSL_VERIFY = os.environ.get("LLM_SSL_VERIFY", "true")
+
+    # ── 1. System ──
+    print("\n=== 1. System ===")
+    print(f"  target={TARGET_URL}  host={host}")
+    print(f"  platform={platform.platform()}")
+    print(f"  python={sys.version.split()[0]}")
+    for lib in ("httpx", "requests", "openai", "certifi"):
+        try:
+            mod = __import__(lib)
+            v = getattr(mod, "__version__", "installed")
+            p = getattr(mod, "__file__", "")
+            if lib == "certifi":
+                print(f"  {lib}={v}  path={mod.where()}  certs={_count_certs(mod.where())}")
+            else:
+                print(f"  {lib}={v}")
+        except ImportError:
+            print(f"  {lib}=NOT_INSTALLED")
+
+    # ── 2. System CA Store ──
+    print("\n=== 2. System CA Store ===")
+    bundle_certs = _count_certs(str(CA_BUNDLE)) if CA_BUNDLE.exists() else 0
+    hash_links = len(list(CA_DIR.glob("[0-9a-f]*.[0-9]"))) if CA_DIR.is_dir() else 0
+    print(f"  bundle={CA_BUNDLE}  certs={bundle_certs}")
+    print(f"  capath={CA_DIR}  hash_links={hash_links}")
+
+    print("  custom certs:")
+    for d in CUSTOM_DIRS:
+        if not d.is_dir():
+            continue
+        for f in sorted(d.iterdir()):
+            if f.suffix in (".pem", ".crt") and f.is_file():
+                rc, out, _ = _run(["openssl", "x509", "-in", str(f), "-noout",
+                                   "-subject", "-issuer"], timeout=3)
+                if rc != 0:
+                    rc, out, _ = _run(["openssl", "x509", "-in", str(f), "-inform",
+                                       "DER", "-noout", "-subject"], timeout=3)
+                subj = out.replace("subject=", "").strip() if rc == 0 else "UNREADABLE"
+                print(f"    {f.parent.name}/{f.name}  subj={subj[:60]}")
+
+    # ── 3. OpenSSL s_client (3 variants) ──
+    print("\n=== 3. OpenSSL s_client ===")
+    test_openssl("default", [])
+    test_openssl("cafile", ["-CAfile", str(CA_BUNDLE)])
+    test_openssl("capath", ["-CApath", str(CA_DIR)])
+
+    # ── 4. Python httpx ──
+    print("\n=== 4. Python httpx (LLMClient) ===")
+    try:
+        import httpx
+        test_httpx("httpx_True", verify=True)
+        try:
+            import ssl
+            ctx_cafile = ssl.create_default_context(cafile=str(CA_BUNDLE)) if CA_BUNDLE.exists() else ssl.create_default_context()
+            ctx_capath = ssl.create_default_context(capath=str(CA_DIR)) if CA_DIR.is_dir() else ssl.create_default_context()
+            test_httpx("httpx_cafile", verify=ctx_cafile)
+            test_httpx("httpx_capath", verify=ctx_capath)
+        except Exception as e:
+            print(f"  SSLContext: ❌ {e}")
+        test_httpx("httpx_False", verify=False)
+    except ImportError:
+        print("  httpx: NOT_INSTALLED")
+
+    # ── 5. Python requests ──
+    print("\n=== 5. Python requests (translate plugin) ===")
+    try:
+        import requests as req
+        test_requests("requests_True", verify=True)
+        test_requests("requests_cafile", verify=str(CA_BUNDLE))
+        test_requests("requests_capath", verify=str(CA_DIR))
+        test_requests("requests_False", verify=False)
+    except ImportError:
+        print("  requests: NOT_INSTALLED")
+
+    # ── 6. NSS Chromium ──
+    print("\n=== 6. NSS Chromium ===")
+    rc, out, err = _run(["certutil", "-L", "-d", NSS_DB], timeout=5)
+    if rc == 0:
+        lines = [l for l in out.split("\n") if l.strip() and "Certificate Nickname" not in l]
+        print(f"  DB={NSS_DB}  certs={len(lines)}")
+        for l in lines:
+            if any(x in l.lower() for x in ("rusal", "llm-", "custom-")):
+                print(f"    {l}")
+    else:
+        print(f"  NSS: {err.strip() or 'unavailable'}")
+
+    # ── 7. LLM_SSL_VERIFY env ──
+    print("\n=== 7. LLM_SSL_VERIFY ===")
+    print(f"  LLM_SSL_VERIFY={LLM_SSL_VERIFY}  disabled={LLM_SSL_VERIFY.strip().lower() in ('false','0','no','off')}")
+
+    # ── 8. JSON Summary ──
+    print("\n=== 8. JSON Summary ===")
+    summary = {k: results[k] for k in [
+        "openssl_default", "openssl_cafile", "openssl_capath",
+        "httpx_True", "httpx_cafile", "httpx_capath", "httpx_False",
+        "requests_True", "requests_cafile", "requests_capath", "requests_False",
+    ] if k in results}
+
+    # Diagnosis
+    diag = []
+    for k in ("openssl_default", "openssl_cafile", "openssl_capath"):
+        v = str(summary.get(k, ""))
+        diag.append(f"{k}={'OK' if v.startswith('OK') else 'FAIL'}")
+    for k in sorted(summary):
+        if k.startswith("httpx") or k.startswith("requests"):
+            v = str(summary.get(k, ""))
+            diag.append(f"{k}={'OK' if v.startswith('OK') else 'FAIL'}")
+
+    if str(results.get("httpx_capath", "")).startswith("OK") and not str(results.get("httpx_cafile", "")).startswith("OK"):
+        diag.append("VERDICT=capath_works_cafile_fails_use_capath")
+    elif str(summary.get("httpx_False", "")).startswith("OK"):
+        diag.append("VERDICT=all_ssl_fails_verify_disabled_works")
+    elif str(summary.get("openssl_default", "")).startswith("OK"):
+        diag.append("VERDICT=all_ok")
+    else:
+        diag.append("VERDICT=needs_investigation")
+
+    summary["diagnosis"] = "; ".join(diag)
+    print(json.dumps(summary, indent=2))

scripts/check_llm_certs.sh

@@ -1,251 +0,0 @@
-#!/usr/bin/env bash
-# #region check_llm_certs [C:4] [TYPE Module] [SEMANTICS ssl, certs, diagnostics, openssl, nss]
-# @BRIEF Проверка установки корпоративных SSL-сертификатов для LLM-провайдеров.
-#   Читает конфигурацию из .env.enterprise-clean, проверяет все 4 слоя:
-#   OpenSSL store, httpx, requests, Chromium NSS.
-# @RATIONALE После ручной/автоматической установки сертификатов нужно убедиться
-#   что все три HTTP-стека (httpx, requests, Chromium) доверяют корпоративным CA.
-#   По отдельности каждый слой имеет свою логику — скрипт собирает всё воедино.
-# @USAGE ./scripts/check_llm_certs.sh [--env-file .env.enterprise-clean] [--target https://lite.ai.rusal.com]
-# @LAYER Infrastructure
-# @EXAMPLE:
-#   ./scripts/check_llm_certs.sh
-#   ./scripts/check_llm_certs.sh --target https://api.corp.com/v1 --env-file /opt/ss-tools/.env
-# #endregion check_llm_certs
-
-set -euo pipefail
-
-# ── Colors ──
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-CYAN='\033[0;36m'
-NC='\033[0m' # No Color
-PASS="${GREEN}✅${NC}"
-FAIL="${RED}❌${NC}"
-WARN="${YELLOW}⚠${NC}"
-INFO="${CYAN}ℹ${NC}"
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-PROJECT_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
-
-# ── Defaults ──
-ENV_FILE="${PROJECT_ROOT}/.env.enterprise-clean"
-TARGET_URL="https://lite.ai.rusal.com"
-VERBOSE=false
-
-# ── Parse args ──
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-    --env-file) ENV_FILE="$2"; shift 2 ;;
-    --target)   TARGET_URL="$2"; shift 2 ;;
-    -v|--verbose) VERBOSE=true; shift ;;
-    --help|-h)  echo "Usage: $0 [--env-file .env] [--target https://...] [-v]"; exit 0 ;;
-    *) echo "Unknown: $1"; exit 1 ;;
-  esac
-done
-
-# ── Load env ──
-if [ -f "$ENV_FILE" ]; then
-  echo -e "${INFO} Loading env: ${ENV_FILE}"
-  set -a
-  source "$ENV_FILE"
-  set +a
-else
-  echo -e "${WARN} Env file not found: ${ENV_FILE} (using defaults)"
-fi
-
-LLM_SSL_VERIFY="${LLM_SSL_VERIFY:-true}"
-CA_BUNDLE="/etc/ssl/certs/ca-certificates.crt"
-NSS_DB_DIR="${HOME:-/root}/.pki/nssdb"
-
-echo ""
-echo -e "${CYAN}========================================${NC}"
-echo -e "${CYAN}  LLM SSL Certificate Diagnostics${NC}"
-echo -e "${CYAN}========================================${NC}"
-echo ""
-echo "Target URL:       ${TARGET_URL}"
-echo "LLM_SSL_VERIFY:   ${LLM_SSL_VERIFY}"
-echo "Env file:         ${ENV_FILE}"
-echo ""
-
-# ══════════════════════════════════════════
-#  SECTION 1: System CA Store
-# ══════════════════════════════════════════
-echo -e "${CYAN}── Layer 1: System CA Store (OpenSSL) ──${NC}"
-
-# Check bundle exists
-total_certs=0
-if [ -f "$CA_BUNDLE" ]; then
-  total_certs=$(awk '/BEGIN CERTIFICATE/{c++} END{print c}' "$CA_BUNDLE" 2>/dev/null || echo "0")
-  echo -e "  ${PASS} Bundle: ${CA_BUNDLE} (${total_certs} certificates)"
-else
-  echo -e "  ${FAIL} Bundle NOT FOUND: ${CA_BUNDLE}"
-fi
-
-# List custom certs
-echo -n "  Custom certs: "
-custom_dir="/usr/local/share/ca-certificates/custom"
-llm_dir="/usr/local/share/ca-certificates/llm"
-found_custom=0
-for dir in "$custom_dir" "$llm_dir"; do
-  if [ -d "$dir" ]; then
-    for f in "$dir"/*.pem "$dir"/*.crt; do
-      [ -f "$f" ] || continue
-      found_custom=$((found_custom+1))
-      subject="$(openssl x509 -in "$f" -noout -subject 2>/dev/null | head -1 || echo "?")"
-      echo -e "\n    ${PASS} $(basename "$f") — ${subject}"
-    done
-  fi
-done
-if [ "$found_custom" -eq 0 ]; then
-  echo -e "${WARN} none found (check CERTS_PATH mount and LLM_CA_CERT_URLS)"
-fi
-
-# Check symlinks
-echo -n "  Hash symlinks: "
-hash_links=$(find /etc/ssl/certs/ -maxdepth 1 -type l -name '[0-9a-f]*.[0-9]' 2>/dev/null | wc -l)
-echo -e "${hash_links} found"
-
-# ══════════════════════════════════════════
-#  SECTION 2: NSS Database (Chromium)
-# ══════════════════════════════════════════
-echo ""
-echo -e "${CYAN}── Layer 2: NSS Database (Chromium) ──${NC}"
-
-if command -v certutil &>/dev/null && [ -d "$NSS_DB_DIR" ]; then
-  nss_db="sql:${NSS_DB_DIR}"
-  nss_certs=$(certutil -L -d "$nss_db" 2>/dev/null | wc -l || echo "0")
-  echo -e "  ${PASS} NSS DB: ${NSS_DB_DIR} (${nss_certs} certificates)"
-
-  # Show custom certs
-  certutil -L -d "$nss_db" 2>/dev/null | grep -iE "rusal|llm-|custom-" | while read -r line; do
-    echo -e "    ${PASS} ${line}"
-  done
-elif ! command -v certutil &>/dev/null; then
-  echo -e "  ${WARN} certutil not installed (libnss3-tools missing)"
-elif [ ! -d "$NSS_DB_DIR" ]; then
-  echo -e "  ${WARN} NSS DB not found at ${NSS_DB_DIR}"
-fi
-
-# ══════════════════════════════════════════
-#  SECTION 3: OpenSSL Connectivity Test
-# ══════════════════════════════════════════
-echo ""
-echo -e "${CYAN}── Layer 3: OpenSSL Connectivity ──${NC}"
-
-target_host="$(echo "${TARGET_URL}" | sed 's|https://||;s|/.*$||')"
-echo -n "  ${target_host}:443 — "
-
-if openssl s_client -connect "${target_host}:443" -CAfile "$CA_BUNDLE" -servername "$target_host" </dev/null 2>/dev/null \
-  | grep -q "Verify return code: 0"; then
-  echo -e "${PASS} SSL handshake OK (verify via system CA)"
-else
-  verify_code=$(openssl s_client -connect "${target_host}:443" -CAfile "$CA_BUNDLE" -servername "$target_host" </dev/null 2>&1 \
-    | grep "Verify return code" | head -1 || echo "unknown")
-  echo -e "${FAIL} ${verify_code}"
-  echo -e "  ${INFO} Check: missing intermediate CA or wrong CA bundle"
-fi
-
-# ══════════════════════════════════════════
-#  SECTION 4: Python httpx Test
-# ══════════════════════════════════════════
-echo ""
-echo -e "${CYAN}── Layer 4: Python httpx (AsyncOpenAI) ──${NC}"
-
-CA_BUNDLE_PY="${CA_BUNDLE}"
-TARGET_URL_PY="${TARGET_URL}"
-PASS_PY="${PASS}"
-FAIL_PY="${FAIL}"
-INFO_PY="${INFO}"
-WARN_PY="${WARN}"
-export CA_BUNDLE_PY TARGET_URL_PY PASS_PY FAIL_PY INFO_PY WARN_PY
-python3 -c '
-import ssl, sys, os
-
-cafile = os.environ.get("CA_BUNDLE_PY", "/etc/ssl/certs/ca-certificates.crt")
-target = os.environ.get("TARGET_URL_PY", "https://lite.ai.rusal.com")
-pass_emoji = os.environ.get("PASS_PY", "✅")
-fail_emoji = os.environ.get("FAIL_PY", "❌")
-info_emoji = os.environ.get("INFO_PY", "ℹ")
-
-try:
-    ctx = ssl.create_default_context(cafile=cafile)
-    print(f"  {pass_emoji} SSLContext created with cafile={cafile}")
-    print(f"  {info_emoji} verify_mode={ctx.verify_mode}")
-except Exception as e:
-    print(f"  {fail_emoji} SSLContext error: {e}")
-    sys.exit(1)
-
-try:
-    import httpx
-    r = httpx.get(target, verify=ctx, timeout=10)
-    print(f"  {pass_emoji} httpx GET {target} → {r.status_code}")
-except httpx.ConnectError as e:
-    print(f"  {fail_emoji} httpx connection failed: {e}")
-except Exception as e:
-    print(f"  {fail_emoji} httpx error: {e}")
-' 2>&1 || echo -e "  ${FAIL} Python test failed"
-
-# ══════════════════════════════════════════
-#  SECTION 5: Python requests Test
-# ══════════════════════════════════════════
-echo ""
-echo -e "${CYAN}── Layer 5: Python requests ──${NC}"
-
-python3 -c '
-import os, sys
-target = os.environ.get("TARGET_URL_PY", "https://lite.ai.rusal.com")
-cafile = os.environ.get("CA_BUNDLE_PY", "/etc/ssl/certs/ca-certificates.crt")
-pass_emoji = os.environ.get("PASS_PY", "✅")
-fail_emoji = os.environ.get("FAIL_PY", "❌")
-try:
-    import requests
-    r = requests.get(target, verify=cafile, timeout=10)
-    print(f"  {pass_emoji} requests GET {target} → {r.status_code}")
-except requests.exceptions.SSLError as e:
-    print(f"  {fail_emoji} requests SSL error: {e}")
-except Exception as e:
-    print(f"  {fail_emoji} requests error: {e}")
-' 2>&1 || echo -e "  ${FAIL} Python requests test failed"
-
-# ══════════════════════════════════════════
-#  SECTION 6: LLM_SSL_VERIFY env var check
-# ══════════════════════════════════════════
-echo ""
-echo -e "${CYAN}── Layer 6: LLM_SSL_VERIFY env var ──${NC}"
-
-python3 -c '
-import os
-raw = os.getenv("LLM_SSL_VERIFY", "true").strip().lower()
-disabled = raw in ("false", "0", "no", "off")
-warn_emoji = os.environ.get("WARN_PY", "⚠")
-pass_emoji = os.environ.get("PASS_PY", "✅")
-info_emoji = os.environ.get("INFO_PY", "ℹ")
-cafile = os.environ.get("CA_BUNDLE_PY", "/etc/ssl/certs/ca-certificates.crt")
-if disabled:
-    print(f"  {warn_emoji} LLM_SSL_VERIFY={raw} — SSL verification DISABLED")
-else:
-    print(f"  {pass_emoji} LLM_SSL_VERIFY={raw} — SSL verification ENABLED")
-    import ssl
-    if os.path.exists(cafile):
-        ctx = ssl.create_default_context(cafile=cafile)
-        print(f"  {info_emoji} ssl.create_default_context(cafile=...) — OK")
-' 2>&1
-
-# ══════════════════════════════════════════
-#  SUMMARY
-# ══════════════════════════════════════════
-echo ""
-echo -e "${CYAN}========================================${NC}"
-echo -e "${CYAN}  Summary${NC}"
-echo -e "${CYAN}========================================${NC}"
-echo ""
-echo "  CA Bundle:       ${CA_BUNDLE} (${total_certs} certs)"
-echo "  NSS DB:          ${NSS_DB_DIR}"
-echo "  Target:          ${TARGET_URL}"
-echo "  LLM_SSL_VERIFY:  ${LLM_SSL_VERIFY}"
-echo ""
-echo "  If openssl test passes but Python fails — check certifi vs system CA"
-echo "  If all tests pass — remove LLM_SSL_VERIFY=false from .env and rerun"
-echo ""