refactor: consolidate observability -- merge sentry.py + performance_metrics.py (OPE-87)

backend/config/startup_checks.py

@@ -23,6 +23,8 @@
     ("COHERE_API_KEY", "Cohere API key for reranking", "Search reranking disabled"),
     ("VOYAGE_API_KEY", "Voyage AI key for code embeddings", "Using OpenAI embeddings"),
     ("SENTRY_DSN", "Sentry DSN for error tracking", "Error tracking disabled"),
+    ("SENTRY_SEND_PII", "Send user emails to Sentry", "PII disabled (privacy safe)"),
+    ("SENTRY_INCLUDE_LOCAL_VARS", "Include local vars in Sentry traces", "Local vars excluded"),
     ("REDIS_HOST", "Redis host for caching", "Using default localhost"),
 ]
 

backend/dependencies.py

@@ -9,13 +9,13 @@
 from services.cache import CacheService
 from services.dependency_analyzer import DependencyAnalyzer
 from services.style_analyzer import StyleAnalyzer
-from services.performance_metrics import PerformanceMetrics
 from services.dna_extractor import DNAExtractor
 from services.rate_limiter import RateLimiter, APIKeyManager
 from services.supabase_service import get_supabase_service
 from services.input_validator import InputValidator, CostController
 from services.user_limits import init_user_limits_service, get_user_limits_service
 from services.repo_validator import get_repo_validator
+from services.observability import metrics
 
 # Service instances (singleton pattern)
 indexer = OptimizedCodeIndexer()
@@ -24,7 +24,6 @@
 dependency_analyzer = DependencyAnalyzer()
 style_analyzer = StyleAnalyzer()
 dna_extractor = DNAExtractor()
-metrics = PerformanceMetrics()
 
 # Rate limiting and API key management
 rate_limiter = RateLimiter(redis_client=cache.redis if cache.redis else None)

backend/main.py

@@ -15,7 +15,7 @@
 import os
 
 # Initialize Sentry FIRST (before other imports to catch all errors)
-from services.sentry import init_sentry
+from services.observability import init_sentry
 init_sentry()
 
 # Import API config (single source of truth for versioning)
@@ -146,7 +146,7 @@ async def generic_exception_handler(request: Request, exc: Exception):
     Catch-all handler for unhandled exceptions.
     Captures to Sentry and returns 500.
     """
-    from services.sentry import capture_http_exception
+    from services.observability import capture_http_exception
     capture_http_exception(request, exc, 500)
 
     return JSONResponse(

backend/middleware/auth.py

@@ -117,15 +117,15 @@ def _authenticate(token: str) -> AuthContext:
     ctx = _validate_jwt(token)
     if ctx:
         # Set Sentry user context for error tracking
-        from services.sentry import set_user_context
+        from services.observability import set_user_context
         set_user_context(user_id=ctx.user_id, email=ctx.email)
         return ctx
 
     # Try API key
     ctx = _validate_api_key(token)
     if ctx:
         # Set Sentry user context for error tracking
-        from services.sentry import set_user_context
+        from services.observability import set_user_context
         set_user_context(user_id=ctx.user_id or ctx.api_key_name)
         return ctx