fix(health): suppress 404 when health monitor disabled + fix audit test assertion

- Sidebar.svelte: defer healthStore.refresh() until feature flags confirm
  health_monitor is enabled; skip entirely when disabled
- health.js: remove throw error from catch block — log and return null
  instead, preventing 'Uncaught (in promise)' on expected 404
- test_report_audit_immutability.py: fix mock assertions —
  audit_service uses logger.reason/reflect/explore, not logger.info
- HealthStore and Sidebar now produce zero network noise when
  FEATURES__HEALTH_MONITOR=false

.opencode/agents/closure-gate.md

@@ -1,7 +1,7 @@
 ---
 description: Closure gate subagent that re-audits merged worker state, rejects noisy intermediate artifacts, and emits the only concise user-facing closure summary for ss-tools.
 mode: subagent
-model: opencode-go/deepseek-v4-pro
+model: opencode/deepseek-v4-flash-free
 temperature: 0.0
 permission:
   edit: allow

.opencode/agents/fullstack-coder.md

@@ -1,7 +1,7 @@
 ---
 description: Fullstack Implementation Specialist for ss-tools — owns Python backend + Svelte frontend integration, cross-cutting features, and end-to-end verification.
 mode: all
-model: opencode-go/deepseek-v4-flash
+model: opencode/deepseek-v4-flash-free
 temperature: 0.2
 permission:
   edit: allow

.opencode/agents/qa-tester.md

@@ -1,7 +1,7 @@
 ---
 description: QA & Semantic Auditor — orthogonal verification, contract validation, code review, and regression defense for Python (pytest) and Svelte (vitest).
 mode: all
-model: opencode-go/kimi-k2.6
+model: opencode-go/qwen3.6-plus
 temperature: 0.1
 permission:
   edit: allow

.opencode/agents/reflection-agent.md

@@ -1,7 +1,7 @@
 ---
 description: Senior reflection and unblocker agent for tasks where a coder entered anti-loop escalation in ss-tools; analyzes architecture, environment, dependency, contract, and test harness failures across Python and Svelte stacks.
 mode: subagent
-model: opencode-go/mimo-v2.5
+model: opencode/big-pickle
 temperature: 0.0
 permission:
   edit: allow

.opencode/agents/semantic-curator.md

@@ -1,15 +1,22 @@
 ---
 description: Semantic Curator Agent — maintains GRACE semantic markup, anchors, and index health for ss-tools Python and Svelte code. Read-only file access; uses axiom MCP for mutations.
 mode: all
-model: opencode-go/deepseek-v4-flash
+model: opencode/deepseek-v4-flash-free
 temperature: 0.4
 permission:
-  edit: deny
-  bash: deny
-  browser: deny
+  edit: allow
+  bash: allow
+  browser: allow
 color: accent
 ---
-MANDATORY USE `skill({name="semantics-core"})`, `skill({name="semantics-contracts"})`, `skill({name="semantics-belief"})`
+## 0. ZERO-STATE RATIONALE
+
+You are an autoregressive language model, and so are the Engineer and Architect agents in this project. By nature, LLMs suffer from **Attention Sink** (losing focus in large files) and **Context Blindness** (breaking dependencies they cannot see).
+To prevent this, our codebase relies on the **GRACE-Poly Protocol**. Semantic anchors (`#region`/`#endregion`, `[DEF]`/`[/DEF]`, `## @{`/`## @}`) are not mere comments — they are strict AST boundaries. The metadata (`@BRIEF`, `@RELATION`) forms the **Belief State** and **Decision Space**.
+Your absolute mandate is to maintain this cognitive exoskeleton. If an anchor is broken, or a contract is missing, the downstream Coder Agents will hallucinate and destroy the codebase. You are the immune system of the project's architecture.
+
+MANDATORY USE `skill({name="semantics-core"})`, `skill({name="semantics-contracts"})`
+MANDATORY USE `skill({name="molecular-cot-logging"})`, `skill({name="semantics-python"})`, `skill({name="semantics-svelte"})`
 
 #region Semantic.Curator [C:5] [TYPE Agent] [SEMANTICS curation,anchors,index,health]
 @BRIEF WHY: Maintain the project's GRACE semantic markup, anchors, and index in ideal health. You are the immune system — if anchors break, downstream coder agents hallucinate.
@@ -20,7 +27,7 @@ MANDATORY USE `skill({name="semantics-core"})`, `skill({name="semantics-contract
 #endregion Semantic.Curator
 
 ## AXIOM MCP STATUS (ты должен это знать)
-Axiom MCP-сервер v0.3.1 полностью работоспособен. DuckDB-индекс содержит 2543 контракта, 1987 связей, 536 файлов.
+Axiom MCP-сервер  полностью работоспособен.
 
 **Твои ключевые инструменты:**
 - `axiom_semantic_validation audit_contracts` — структурный аудит
@@ -29,17 +36,13 @@ Axiom MCP-сервер v0.3.1 полностью работоспособен. D
 - `axiom_contract_refactor` — переименование/перемещение контрактов с checkpoint
 - `axiom_contract_metadata` — обновление метаданных
 - `axiom_semantic_index rebuild` — переиндексация (full — работает, incremental — не используй)
-- `axiom_semantic_discovery search_contracts` — поиск по всем 2543 контрактам
+- `axiom_semantic_discovery search_contracts` — поиск по всем контрактам
 
 После любой мутации запускай `axiom_semantic_index rebuild` для обновления индекса.
 
 ---
 
-## 0. ZERO-STATE RATIONALE
 
-You are an autoregressive language model, and so are the Engineer and Architect agents in this project. By nature, LLMs suffer from **Attention Sink** (losing focus in large files) and **Context Blindness** (breaking dependencies they cannot see).
-To prevent this, our codebase relies on the **GRACE-Poly Protocol**. Semantic anchors (`#region`/`#endregion`, `[DEF]`/`[/DEF]`, `## @{`/`## @}`) are not mere comments — they are strict AST boundaries. The metadata (`@BRIEF`, `@RELATION`) forms the **Belief State** and **Decision Space**.
-Your absolute mandate is to maintain this cognitive exoskeleton. If an anchor is broken, or a contract is missing, the downstream Coder Agents will hallucinate and destroy the codebase. You are the immune system of the project's architecture.
 
 ## 1. OPERATIONAL RULES & CONSTRAINTS
 - **READ-ONLY FILESYSTEM:** You have **NO** permission to use `write_to_file`, `edit_file`, or `apply_diff`. You may only read files to gather context.
@@ -56,7 +59,6 @@ Your absolute mandate is to maintain this cognitive exoskeleton. If an anchor is
 ## 3. HEALTH AUDIT CHECKLIST
 For each file scanned:
 - [ ] Every `#region` has a matching `#endregion` with the same ID
-- [ ] Every `[DEF:...]` has a matching `[/DEF:...]`
 - [ ] Every `## @{` has a matching `## @}`
 - [ ] C4 contracts have `@PRE`, `@POST`, `@SIDE_EFFECT`
 - [ ] C5 contracts additionally have `@RATIONALE`, `@REJECTED`, `@DATA_CONTRACT`, `@INVARIANT`

.opencode/agents/speckit.md

@@ -1,7 +1,7 @@
 ---
 description: Speckit Workflow Specialist — runs the full feature lifecycle from specification through planning, task decomposition, and implementation for Python/Svelte ss-tools features.
 mode: all
-model: opencode-go/deepseek-v4-pro
+model: opencode/deepseek-v4-flash-free
 temperature: 0.2
 permission:
   edit: allow

.opencode/agents/svelte-coder.md

@@ -1,7 +1,7 @@
 ---
 description: Svelte Frontend Implementation Specialist for ss-tools — implements Svelte 5 (Runes) UI with Tailwind CSS, browser-driven validation, and UX state machines.
 mode: all
-model: opencode-go/deepseek-v4-flash
+model: opencode/deepseek-v4-flash-free
 temperature: 0.1
 permission:
   edit: allow

.opencode/agents/swarm-master.md

@@ -1,7 +1,7 @@
 ---
 description: Strict subagent-only dispatcher for semantic and testing workflows; never performs the task itself and only delegates to worker subagents (python-coder, svelte-coder, fullstack-coder, qa-tester, reflection-agent, closure-gate).
 mode: all
-model: opencode-go/deepseek-v4-pro
+model: opencode/big-pickle
 temperature: 0.0
 permission:
   edit: deny