Initial commit: breakpilot-core - Shared Infrastructure

Docker Compose with 24+ services:
- PostgreSQL (PostGIS), Valkey, MinIO, Qdrant
- Vault (PKI/TLS), Nginx (Reverse Proxy)
- Backend Core API, Consent Service, Billing Service
- RAG Service, Embedding Service
- Gitea, Woodpecker CI/CD
- Night Scheduler, Health Aggregator
- Jitsi (Web/XMPP/JVB/Jicofo), Mailpit

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend-core/middleware/request_id.py

@@ -0,0 +1,138 @@
+"""
+Request-ID Middleware
+
+Generates and propagates unique request identifiers for distributed tracing.
+Supports both X-Request-ID and X-Correlation-ID headers.
+
+Usage:
+    from middleware import RequestIDMiddleware, get_request_id
+
+    app.add_middleware(RequestIDMiddleware)
+
+    @app.get("/api/example")
+    async def example():
+        request_id = get_request_id()
+        logger.info(f"Processing request", extra={"request_id": request_id})
+"""
+
+import uuid
+from contextvars import ContextVar
+from typing import Optional
+
+from starlette.middleware.base import BaseHTTPMiddleware
+from starlette.requests import Request
+from starlette.responses import Response
+
+# Context variable to store request ID across async calls
+_request_id_ctx: ContextVar[Optional[str]] = ContextVar("request_id", default=None)
+
+# Header names
+REQUEST_ID_HEADER = "X-Request-ID"
+CORRELATION_ID_HEADER = "X-Correlation-ID"
+
+
+def get_request_id() -> Optional[str]:
+    """
+    Get the current request ID from context.
+
+    Returns:
+        The request ID string or None if not in a request context.
+
+    Example:
+        request_id = get_request_id()
+        logger.info("Processing", extra={"request_id": request_id})
+    """
+    return _request_id_ctx.get()
+
+
+def set_request_id(request_id: str) -> None:
+    """
+    Set the request ID in the current context.
+
+    Args:
+        request_id: The request ID to set
+    """
+    _request_id_ctx.set(request_id)
+
+
+def generate_request_id() -> str:
+    """
+    Generate a new unique request ID.
+
+    Returns:
+        A UUID4 string
+    """
+    return str(uuid.uuid4())
+
+
+class RequestIDMiddleware(BaseHTTPMiddleware):
+    """
+    Middleware that generates and propagates request IDs.
+
+    For each incoming request:
+    1. Check for existing X-Request-ID or X-Correlation-ID header
+    2. If not present, generate a new UUID
+    3. Store in context for use by handlers and logging
+    4. Add to response headers
+
+    Attributes:
+        header_name: The primary header name to use (default: X-Request-ID)
+        generator: Function to generate new IDs (default: uuid4)
+    """
+
+    def __init__(
+        self,
+        app,
+        header_name: str = REQUEST_ID_HEADER,
+        generator=generate_request_id,
+    ):
+        super().__init__(app)
+        self.header_name = header_name
+        self.generator = generator
+
+    async def dispatch(self, request: Request, call_next) -> Response:
+        # Try to get existing request ID from headers
+        request_id = (
+            request.headers.get(REQUEST_ID_HEADER)
+            or request.headers.get(CORRELATION_ID_HEADER)
+        )
+
+        # Generate new ID if not provided
+        if not request_id:
+            request_id = self.generator()
+
+        # Store in context for logging and handlers
+        set_request_id(request_id)
+
+        # Store in request state for direct access
+        request.state.request_id = request_id
+
+        # Process request
+        response = await call_next(request)
+
+        # Add request ID to response headers
+        response.headers[REQUEST_ID_HEADER] = request_id
+        response.headers[CORRELATION_ID_HEADER] = request_id
+
+        return response
+
+
+class RequestIDLogFilter:
+    """
+    Logging filter that adds request_id to log records.
+
+    Usage:
+        import logging
+
+        handler = logging.StreamHandler()
+        handler.addFilter(RequestIDLogFilter())
+
+        formatter = logging.Formatter(
+            '%(asctime)s [%(request_id)s] %(levelname)s %(message)s'
+        )
+        handler.setFormatter(formatter)
+    """
+
+    def filter(self, record):
+        record.request_id = get_request_id() or "no-request-id"
+        return True