Andrew Nesbitt 8d2740624f Structured JSON error responses for API endpoints (#110) ... * Structured JSON error responses for API endpoints API handlers returned errors via http.Error (text/plain) with ad-hoc strings, while the mirror API used a different {"error": "..."} shape and leaked internal err.Error() text to clients. Add ErrorResponse{Code, Message} with stable codes (BAD_REQUEST, NOT_FOUND, UPSTREAM_ERROR, INTERNAL_ERROR) and writeError/badRequest/ notFound/internalError helpers. Convert all JSON API handlers in api.go, browse.go, mirror_api.go and the /stats endpoint. Enrichment failures now report 502 UPSTREAM_ERROR rather than 500. Protocol handlers in internal/handler/ are deliberately unchanged since npm/pip/cargo clients expect their own response formats, not JSON. HTML page handlers in server.go also keep text/plain. Swagger @Failure annotations updated and docs regenerated. Fixes #76 * Convert validatePackagePath errors to JSON in API handlers		2026-05-03 09:42:03 +01:00
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docs.go	Structured JSON error responses for API endpoints (#110)	2026-05-03 09:42:03 +01:00
swagger.json	Structured JSON error responses for API endpoints (#110)	2026-05-03 09:42:03 +01:00