feat(webapp): mollifier API GET read-fallback — synthetic primitives + route wiring#3755
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feat(webapp): mollifier API GET read-fallback — synthetic primitives + route wiring#3755d-cs wants to merge 4 commits into
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…+ route wiring Synthesise QUEUED/FAILED responses from the mollifier buffer when a TaskRun row hasn't landed in Postgres yet. Wires the synthesis into: - ApiRetrieveRunPresenter - v1 trace GET route - v1 spans GET route - attempts route gains a GET loader (fixes pre-existing Remix 400) Stacked on the trigger-time decisions PR. The readFallback infra itself lives on the trigger PR (consumed by IdempotencyKeyConcern); this PR adds the route-level synthetic-rendering primitives. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Replaces the ad-hoc \`as Record<string, unknown>\` + \`typeof === "string"\` checks in \`findBufferedRunRedirectInfo\` with a Zod \`safeParse\` against a schema for the subset of fields the redirect needs (envSlug / projectSlug / orgSlug / optional spanId). Wrong-typed or missing fields now collapse into a single parse-fail branch that logs the structured issue list and returns null. Adds a regression test for the structural-vs-typeof distinction: \`environment.slug: 42\` (number) is now rejected, where the previous \`typeof slug === "string"\` chain would silently accept any string- typed value but had no defence against shape drift in other fields. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…l enum \`SyntheticRun.machinePreset\` is a plain string sourced from the mollifier snapshot, but \`SpanRun.machinePreset\` is the typed \`MachinePresetName\` enum (micro / small-1x / small-2x / medium-1x / medium-2x / large-1x / large-2x). The direct assignment failed \`tsc --noEmit\` and CI typecheck. Validate via \`MachinePresetName.safeParse\` and collapse unknown values to \`undefined\` so a stale preset returned by the buffer doesn't bleed into the UI as a typed-but-unknown value. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Five Devin findings on PR #3755: - ApiRetrieveRunPresenter.synthesiseFoundRunFromBuffer was assigning buffered.friendlyId to the FoundRun.id field. The id column on PG is the internal cuid; downstream log correlation reads taskRun.id and was getting the friendly token instead. Fixed to read the cuid that readFallback already derives via RunId.fromFriendlyId. - api.v1.runs.$runId.trace.ts buffered branch hardcoded isPartial: true. Cancelled is a terminal state — the sibling spans route and syntheticTrace already gate this on !isCancelled. Match. - synthesisePayload helper replaces the silent typeof === "string" coercion. Object-shaped payloads now JSON- stringify (matching how the trigger path would serialise them) with a warn log so format drift is visible. Truly unserialisable inputs fall back to "" with an error log instead of silently dropping. - syntheticRedirectInfo now uses deserialiseMollifierSnapshot (the webapp-side wrapper) instead of deserialiseSnapshot from the redis-worker package directly. Both share the same implementation today, but pinning the wrapper means the two read-side modules can't drift if the snapshot encoding ever changes (e.g. msgpack). - attempts route loader verifies the run belongs to the authenticated environment (PG-first, buffer fallback) before returning the parity-empty list. Other run-scoped endpoints (spans, trace, retrieve) 404 cross-env; matching that closes the exists-vs-doesn't-exist side channel. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Synthesise QUEUED/FAILED responses from the mollifier buffer when a TaskRun row hasn't landed in Postgres yet. Wires the synthesis into:
ApiRetrieveRunPresenterThe
readFallbackinfra itself lives on the trigger PR (consumed byIdempotencyKeyConcern); this PR adds the route-level synthetic-rendering primitives.Stacked on the replay PR.
Test plan