logs: migrate to molecular CoT JSON protocol, fix regressions

- Replace BeliefFormatter with CotJsonFormatter (single-line JSON with
  ts, level, trace_id, src, marker, intent, payload, error, span_id)
- Migrate belief_scope to use cot_log() for structured JSON output
- Update monkey-patched reason/reflect/explore to pass extra= dict
- Strip 200+ inline [REASON]/[REFLECT]/[EXPLORE] markers from 50+ files
- Remove belief_scope from hot-path utilities (_parse_datetime,
  _json_load_if_needed) to eliminate startup log noise
- Register TraceContextMiddleware in app.py (was implemented but unused)
- Seed trace_id in startup_event/shutdown_event for background tasks
- Fix broken relative imports in translate routes (3 dots → 4 dots)
- Migrate 43 translate_routes log calls to logger.reason/explore
- Fix SyntaxError (positional arg after extra=) in _repo_operations_routes
- Fix IndentationError in rbac_permission_catalog except-block
- Add smoke test tests/test_smoke_app.py (catches import errors before run)

backend/src/plugins/git_plugin.py

@@ -134,7 +134,7 @@ class GitPlugin(PluginBase):
     # @POST: Плагин готов к выполнению задач.
     async def initialize(self):
         with belief_scope("GitPlugin.initialize"):
-            app_logger.info("[GitPlugin.initialize][REASON] Initializing Git Integration Plugin logic.")
+            app_logger.reason("Initializing Git Integration Plugin logic.", extra={"src": "GitPlugin.initialize"})
 
     # [DEF:execute:Function]
     # @PURPOSE: Основной метод выполнения задач плагина с поддержкой TaskContext.
@@ -245,9 +245,9 @@ class GitPlugin(PluginBase):
                 # 5. Автоматический staging изменений (не коммит, чтобы юзер мог проверить diff)
                 try:
                     repo.git.add(A=True)
-                    app_logger.info("[_handle_sync][REASON] Changes staged in git")
+                    app_logger.reason("Changes staged in git", extra={"src": "_handle_sync"})
                 except Exception as ge:
-                    app_logger.warning(f"[_handle_sync][REASON] Failed to stage changes: {ge}")
+                    app_logger.explore(f"Failed to stage changes: {ge}", extra={"src": "_handle_sync"})
 
                 app_logger.info(f"[_handle_sync][Coherence:OK] Dashboard {dashboard_id} synced successfully.")
                 return {"status": "success", "message": "Dashboard synced and flattened in local repository"}
@@ -315,7 +315,7 @@ class GitPlugin(PluginBase):
                     f.write(zip_buffer.getvalue())
                 
                 try:
-                    app_logger.info(f"[_handle_deploy][REASON] Importing dashboard to {env.name}")
+                    app_logger.reason(f"Importing dashboard to {env.name}", extra={"src": "_handle_deploy"})
                     result = client.import_dashboard(temp_zip_path)
                     app_logger.info(f"[_handle_deploy][Coherence:OK] Deployment successful for dashboard {dashboard_id}.")
                     return {"status": "success", "message": f"Dashboard deployed to {env.name}", "details": result}
@@ -336,13 +336,13 @@ class GitPlugin(PluginBase):
     # @RETURN: Environment - Объект конфигурации окружения.
     def _get_env(self, env_id: Optional[str] = None):
         with belief_scope("GitPlugin._get_env"):
-            app_logger.info(f"[_get_env][REASON] Fetching environment for ID: {env_id}")
+            app_logger.reason(f"Fetching environment for ID: {env_id}", extra={"src": "_get_env"})
             
             # Priority 1: ConfigManager (config.json)
             if env_id:
                 env = self.config_manager.get_environment(env_id)
                 if env:
-                    app_logger.info(f"[_get_env][REFLECT] Found environment by ID in ConfigManager: {env.name}")
+                    app_logger.reflect(f"Found environment by ID in ConfigManager: {env.name}", extra={"src": "_get_env"})
                     return env
             
             # Priority 2: Database (DeploymentEnvironment)
@@ -360,7 +360,7 @@ class GitPlugin(PluginBase):
                         db_env = db.query(DeploymentEnvironment).first()
 
                 if db_env:
-                    app_logger.info(f"[_get_env][REFLECT] Found environment in DB: {db_env.name}")
+                    app_logger.reflect(f"Found environment in DB: {db_env.name}", extra={"src": "_get_env"})
                     from src.core.config_models import Environment
                     # Use token as password for SupersetClient
                     return Environment(
@@ -382,11 +382,11 @@ class GitPlugin(PluginBase):
                     # but we have other envs, maybe it's one of them?
                     env = next((e for e in envs if e.id == env_id), None)
                     if env:
-                        app_logger.info(f"[_get_env][REFLECT] Found environment {env_id} in ConfigManager list")
+                        app_logger.reflect(f"Found environment {env_id} in ConfigManager list", extra={"src": "_get_env"})
                         return env
                 
                 if not env_id:
-                    app_logger.info(f"[_get_env][REFLECT] Using first environment from ConfigManager: {envs[0].name}")
+                    app_logger.reflect(f"Using first environment from ConfigManager: {envs[0].name}", extra={"src": "_get_env"})
                     return envs[0]
                 
             app_logger.error(f"[_get_env][Coherence:Failed] No environments configured (searched config.json and DB). env_id={env_id}")