Pablan, as it stands

Self-hosted knowledge management for SMEs: a split-screen Markdown editor
whose sections an LLM refines while you write, and RAG question answering
over the documents that result. FastAPI + Postgres/pgvector on the back,
SvelteKit on the front, everything OpenAI-compatible and self-hostable.

Squashed into a single commit; the development history stays local.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CA43ZJda8Rbp2hKXNy8f6b

backend/app/errors.py

@@ -0,0 +1,20 @@
+from fastapi import FastAPI, Request
+from fastapi.responses import JSONResponse
+
+
+class ApiError(Exception):
+    """API error rendered as the protocol's {detail, code} problem shape."""
+
+    def __init__(self, status_code: int, detail: str, code: str) -> None:
+        self.status_code = status_code
+        self.detail = detail
+        self.code = code
+
+
+def register_exception_handlers(app: FastAPI) -> None:
+    @app.exception_handler(ApiError)
+    async def handle_api_error(request: Request, exc: ApiError) -> JSONResponse:
+        return JSONResponse(
+            status_code=exc.status_code,
+            content={"detail": exc.detail, "code": exc.code},
+        )