feat(ai): enforce local-first routing

Keep external providers behind server consent, task, and prompt-cost gates while persisting actual provider provenance.
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cesnimda
2026-08-09 12:30:11 +02:00
parent c3f4a57195
commit 5eb9b3cb96
29 changed files with 967 additions and 145 deletions
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# AI privacy and external-processing policy
Updated: 2026-08-03
Updated: 2026-08-09
The default execution mode is local-only. External processing of `/cv/*` payloads requires all of:
@@ -11,9 +11,10 @@ The default execution mode is local-only. External processing of `/cv/*` payload
5. AI enabled in the user's server-side settings; and
6. the user's explicit `ExternalAiProcessingAllowed` opt-in.
The backend adds `X-Ai-External-Allowed: true` only after that live policy check. The sidecar otherwise routes `/cv/*` to Ollama even when an external provider is configured. `/summarize` always uses the local summarization model. Provider keys remain server-side and are never returned by the settings API.
The backend adds `X-Ai-External-Allowed: true` only after that live policy check. Durable workers use the same header only from their admitted policy snapshot after a live execution-time recheck, and also send the bounded task type. The sidecar otherwise routes `/cv/*` to Ollama even when an external provider is configured. `/summarize` always uses the local summarization model. Provider keys remain server-side and are never returned by the settings API.
`GET/PUT /api/ai/settings` owns the user settings. Disabling AI takes effect on the next protected request and is also rechecked by the current enrichment and queued-CV workers. Existing users migrate with AI enabled to preserve current behaviour; external consent always defaults to false.
This is the privacy admission foundation, not the final routing system. AI-001/AI-002 must carry an immutable policy snapshot into durable operations, recheck it at execution, record the actual provider/reason, add bounded local-first fallback triggers and minimize each external payload. Background CV work currently fails safe to local because it has no HTTP user context.
AI-002 makes provider execution local-first and sequential. External fallback additionally requires an allowed task and stays below the configured per-request prompt ceiling. Actual provider/model/route metadata is returned by the sidecar and persisted by AI Workspace or durable operations. The process-local circuit and health diagnostics expose no prompt or credential data.
This is not permission to enable external processing globally. New durable task types remain local until explicitly allowlisted; AI-003/004 must minimize their exact payloads and complete cross-feature monthly accounting before rollout. `EXTERNAL_AI_ENABLED=false` or `Ai:RoutingMode=local_only` is the immediate rollback switch.