marcopanandClaude Opus 4.8 3453f3ae23 feat: pre-check DWH reachability before creating a session (local dev only) ...

New session now refuses to spawn a Pi runtime that would only die in bootstrap
retrieval when the DWH/vector host is unreachable (e.g. a dropped VPN). Before
`session new`, POST /sessions probes the DWH via `tht db ping`; if it is down it
returns 503 {code:"dwh_unreachable"} with a clear message and creates nothing.

- Gated behind the THT_DWH_PRECHECK flag (default off), enabled only by the local
  dev launcher (run-stack.sh) — containers/CI never pay the probe, and existing
  tests that don't set it are unaffected.
- ThtRunner.dbPing() runs `tht db ping` with a 10s timeout (run() gains an optional
  timeout that SIGKILLs a hung child).
- Frontend: apiFetch throws a typed ApiError (status + parsed payload); the new-
  session composer shows the specific alert on `dwh_unreachable` instead of the
  generic retry hint, keeping the question for retry.

Verified live on an isolated backend (precheck on + broken DWH host → 503
dwh_unreachable, no session created) and via unit tests (backend 228, frontend 308).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-18 12:08:47 +02:00

..

auth-providers.test.ts

feat(backend): let pi self-authenticate providers from its own auth store

2026-07-17 18:26:18 +02:00

auth.test.ts

test: cover user-owned session security boundaries

2026-07-16 19:16:58 +02:00

config.test.ts

docs(deploy): document user-owned session cutover

2026-07-16 19:02:58 +02:00

e2e-f1.test.ts

feat: harden runtime readiness and session workflow

2026-07-14 10:27:25 +02:00

enabled-models.test.ts

feat(backend): read Pi enabled model scope

2026-07-14 18:27:55 +02:00

health.test.ts

docs(deploy): document user-owned session cutover

2026-07-16 19:02:58 +02:00

line-splitter.test.ts

feat(backend): LF-only JSONL line splitter

2026-06-27 20:49:00 +02:00

list-models.test.ts

fix(backend): scope Pi model listing to enabled models

2026-07-14 18:33:15 +02:00

pi-process-manager.test.ts

feat(backend): let pi self-authenticate providers from its own auth store

2026-07-17 18:26:18 +02:00

pi-spawn-args.test.ts

fix(backend): harden principal child isolation

2026-07-16 18:38:40 +02:00

provider-credentials.test.ts

fix(backend): allow configured local Qwen provider

2026-07-14 18:44:12 +02:00

readiness-manager.test.ts

feat: harden runtime readiness and session workflow

2026-07-14 10:27:25 +02:00

routes-sessions.test.ts

feat: pre-check DWH reachability before creating a session (local dev only)

2026-07-18 12:08:47 +02:00

routes-settings.test.ts

fix: bootstrap user preferences without invalidating DWH cache

2026-07-16 20:32:20 +02:00

routes-sql-meta.test.ts

fix(backend): validate configured model provider pair

2026-07-14 18:39:37 +02:00

rpc-client.test.ts

feat(backend): RpcClient (spawn/send/request/event) over JSONL

2026-06-27 20:52:22 +02:00

schema-linking-passthrough.test.ts

test(backend): pin schema-linking structured response passthrough

2026-07-06 23:25:00 +02:00

secret-bundle.test.ts

test(config): cover secret bundle inode races

2026-07-12 11:09:09 +02:00

session-bridge.test.ts

fix: harden resume and SSE replay

2026-07-15 00:06:00 +02:00

settings-store.test.ts

feat(backend): persistent settings store + settingsFile config

2026-06-28 16:01:22 +02:00

sse-hub.test.ts

fix: close delete resume and SSE replay races

2026-07-15 02:08:11 +02:00

sse-route.test.ts

fix: close delete resume and SSE replay races

2026-07-15 02:08:11 +02:00

tht-runner.test.ts

fix(backend): harden principal child isolation

2026-07-16 18:38:40 +02:00