> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase24-session06-signal-workbench-local-triage/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase24-session06-signal-workbench-local-triage` **Started**: 2026-06-08 02:46 **Last Updated**: 2026-06-08 04:06

***

## Session Progress

| Metric              | Value   |
| ------------------- | ------- |
| Tasks Completed     | 25 / 25 |
| Estimated Remaining | 0 hours |
| Blockers            | 0       |

***

### Task T025 - Run quality gates and diff review

**Started**: 2026-06-08 03:39 **Completed**: 2026-06-08 03:45 **Duration**: 6 minutes

**Notes**:

* Focused Workbench tests passed: 3 files, 16 tests.
* App typecheck passed: `bun run typecheck`.
* Targeted ESLint passed for all Workbench-touched source and test files.
* Prettier check passed for touched source, test, and documentation files.
* ASCII validation passed for touched source, test, documentation, and session files.
* `git diff --check` passed.
* The two existing `SourcesView` visibility scenarios in `visibility-views.test.tsx` were fixed by stabilizing the unrelated source setup and scheduler hooks in the visibility test harness; the full visibility file now passes with 10 tests.
* Focused Signal Workbench plus visibility tests passed: 4 files, 26 tests.
* Full `bun run test` still does not complete during repo-level validation attempts; the latest dot-reporter run was manually terminated after roughly 10 minutes.
* Full `bun run lint` still fails on unrelated existing files outside this session's touched Workbench surface; those failures are documented in the final handoff.

**Files Changed**:

* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T025 complete and recorded gate caveats in the completion checklist.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T025 gate results.

**BQC Fixes**:

* Failure path completeness: residual quality-gate issues are recorded explicitly instead of being hidden.

***

### Task T021 - Review copy, labels, accessibility, and responsive fit

**Started**: 2026-06-08 03:35 **Completed**: 2026-06-08 03:39 **Duration**: 4 minutes

**Notes**:

* Reviewed Workbench controls, table, triage controls, and view status copy for compact labels, accessible names, focusable controls, and responsive overflow.
* Verified the primary screen is the table workflow, not a landing page.
* Adjusted long status chips to wrap instead of stretching the status row.

**Files Changed**:

* `src/extensions/trend-finder/views/signal-workbench-view.tsx` - Adjusted status chip wrapping.
* `src/extensions/trend-finder/components/signal-workbench-table.tsx` - Reviewed table column sizing, expansion ARIA, and text fit.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T021 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T021 review.

**BQC Fixes**:

* Accessibility and platform compliance: expansion, sorting, filtering, density, and triage controls use native focusable controls with accessible labels or states.

***

### Task T018 - Verify local-only triage boundary

**Started**: 2026-06-08 03:34 **Completed**: 2026-06-08 03:35 **Duration**: 1 minute

**Notes**:

* Confirmed triage state persists only through `signal-workbench-storage.ts`.
* Confirmed row projection accepts triage as separate browser config and does not write to generated Trend Finder payloads.
* Added tests that mutate view-model rows and perform UI triage updates while asserting generated Watchlist rows, sources, and topic scores remain unchanged.

**Files Changed**:

* `src/extensions/trend-finder/signal-workbench-storage.ts` - Local-only storage boundary.
* `src/extensions/trend-finder/signal-workbench-model.ts` - Separate derived triage row state.
* `src/extensions/trend-finder/__tests__/signal-workbench-model.test.ts` - Immutable payload assertions.
* `src/extensions/trend-finder/components/__tests__/signal-workbench-view.test.tsx` - Watchlist non-mutation assertion.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T018 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T018 verification.

**BQC Fixes**:

* Contract alignment: generated topics, source summaries, score fields, Watchlist rows, and export-facing data remain unchanged during triage projection and UI updates.

***

### Task T022 - Write workbench model tests

**Started**: 2026-06-08 03:29 **Completed**: 2026-06-08 03:34 **Duration**: 5 minutes

**Notes**:

* Added model tests for row projection, source-local lift, search fields, filters, facets, sorting tie-breakers, missing evidence fallbacks, asset states, triage notes, and immutable generated data behavior.

**Files Changed**:

* `src/extensions/trend-finder/__tests__/signal-workbench-model.test.ts` - Added Workbench model tests.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T022 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T022 implementation.

**BQC Fixes**:

* Contract alignment: tests assert generated data, source summaries, scores, and Watchlist rows are not mutated by projection.

***

### Task T023 - Write triage storage tests

**Started**: 2026-06-08 03:29 **Completed**: 2026-06-08 03:34 **Duration**: 5 minutes

**Notes**:

* Added storage tests for parsing, malformed JSON cleanup, invalid state drops, duplicate rows, note bounds, row bounds, updates, clear, reset, persistence, and write failure warnings.

**Files Changed**:

* `src/extensions/trend-finder/__tests__/signal-workbench-storage.test.ts` - Added Workbench storage tests.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T023 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T023 implementation.

**BQC Fixes**:

* Trust boundary enforcement: tests verify malformed and invalid localStorage payloads are bounded or dropped.

***

### Task T024 - Write Workbench component tests

**Started**: 2026-06-08 03:29 **Completed**: 2026-06-08 03:34 **Duration**: 5 minutes

**Notes**:

* Added component tests for controls, search, reset, loading/empty/error states, expansion, evidence rows, triage updates, note editing, keyboard focus, and generated Watchlist non-mutation.
* Focused test run passed: `bunx vitest run src/extensions/trend-finder/__tests__/signal-workbench-model.test.ts src/extensions/trend-finder/__tests__/signal-workbench-storage.test.ts src/extensions/trend-finder/components/__tests__/signal-workbench-view.test.tsx`.

**Files Changed**:

* `src/extensions/trend-finder/components/__tests__/signal-workbench-view.test.tsx` - Added Workbench component tests.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T024 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T024 implementation.

**BQC Fixes**:

* Accessibility and platform compliance: tests verify keyboard focus reaches expansion controls.
* Duplicate action prevention and state freshness: component tests exercise hook-driven localStorage updates and rerendered state.

***

### Task T017 - Extend fixture coverage

**Started**: 2026-06-08 03:25 **Completed**: 2026-06-08 03:29 **Duration**: 4 minutes

**Notes**:

* Added source-local signals to fixture topics and evidence rows for strong-lift, moderate-lift, below-baseline, and placement-excluded unavailable states.
* Existing fixtures already cover mixed source roles, movement states, asset states, missing evidence IDs, source health states, hidden gems, and generated Watchlist rows.

**Files Changed**:

* `src/extensions/trend-finder/fixtures.ts` - Added fixture source-local actionability coverage.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T017 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T017 implementation.

**BQC Fixes**:

* Contract alignment: fixture additions use existing `TrendSourceLocalSignal` schema fields and do not alter Watchlist generation semantics.

***

### Task T019 - Update UI surface docs

**Started**: 2026-06-08 03:23 **Completed**: 2026-06-08 03:25 **Duration**: 2 minutes

**Notes**:

* Documented Signal Workbench purpose, dense rows, search, filters, sorting, expanded evidence rows, local triage states, notes, storage key, and Watchlist separation.

**Files Changed**:

* `docs/extensions/trend-finder-ui-surfaces.md` - Added Signal Workbench section and tab purpose row.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T019 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T019 implementation.

**BQC Fixes**:

* Contract alignment: docs state Workbench triage does not mutate generated Watchlist semantics.

***

### Task T020 - Update runtime and provenance docs

**Started**: 2026-06-08 03:25 **Completed**: 2026-06-08 03:25 **Duration**: 1 minute

**Notes**:

* Documented that Signal Workbench triage is browser-only localStorage state and excluded from generated payloads, exports, caches, scheduler status, live progress, logs, provider responses, prompts, credentials, and private paths.
* Documented defensive parsing behavior for malformed or oversized local triage storage.

**Files Changed**:

* `docs/extensions/trend-finder-runtime-and-provenance.md` - Added browser-only Signal Workbench triage section.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T020 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T020 implementation.

**BQC Fixes**:

* Error information boundaries: docs explicitly exclude private runtime artifacts and secret-bearing data from browser-local triage.

***

### Task T016 - Register Workbench tab

**Started**: 2026-06-08 03:22 **Completed**: 2026-06-08 03:23 **Duration**: 1 minute

**Notes**:

* Registered the Workbench tab in Trend Finder client views with `TableProperties`, static component import, hero tagline mapping, and motion surface mapping.
* Updated localStorage capability text to include browser-only Workbench triage annotations.

**Files Changed**:

* `src/extensions/trend-finder/client.tsx` - Registered the Workbench tab and metadata.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T016 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T016 implementation.

**BQC Fixes**:

* Contract alignment: no generated route files were edited; the tab uses the existing static extension registry.

***

### Task T015 - Wire Signal Workbench view

**Started**: 2026-06-08 03:20 **Completed**: 2026-06-08 03:23 **Duration**: 3 minutes

**Notes**:

* Added `SignalWorkbenchView` wiring parsed Trend Finder data, projected rows, filter state, sort state, expansion state, density state, and triage storage state.
* Added status chips for fixture/demo data, degraded/fallback state, triage storage warnings, extension warnings, and refresh timestamps.
* Added explicit disabled, loading, empty, error, and offline handling.

**Files Changed**:

* `src/extensions/trend-finder/views/signal-workbench-view.tsx` - Added wired Workbench view.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T015 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T015 implementation.

**BQC Fixes**:

* State freshness on re-entry: triage state reloads against the current run key and view rows recompute from current storage.
* Failure path completeness: disabled, loading, empty, error, offline, fixture, and degraded states are visible.

***

### Task T010 - Extend Workbench registration inputs

**Started**: 2026-06-08 03:20 **Completed**: 2026-06-08 03:22 **Duration**: 2 minutes

**Notes**:

* Added `workbench` to Trend Finder motion surfaces and visibility view IDs.
* Added the Workbench tab metadata, icon, hero tagline mapping, and localStorage capability wording through the static extension registry.
* Did not edit generated TanStack route files.

**Files Changed**:

* `src/extensions/trend-finder/client.tsx` - Added Workbench tab registration metadata.
* `src/extensions/trend-finder/visibility-config.ts` - Added Workbench view ID and visibility prefix.
* `src/extensions/trend-finder/components/trend-motion-presets.ts` - Added Workbench motion surface.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T010 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T010 implementation.

**BQC Fixes**:

* Contract alignment: Workbench is statically registered alongside existing Trend Finder tabs, preserving the extension platform ADR boundary.

***

### Task T014 - Add expanded evidence details

**Started**: 2026-06-08 03:19 **Completed**: 2026-06-08 03:20 **Duration**: 1 minute

**Notes**:

* Added expanded evidence lists with public links, source labels, snippets, relevance chips, source-local lift/actionability, source health, warning state, and asset availability labels.
* Missing evidence and missing links render explicit fallback messages.

**Files Changed**:

* `src/extensions/trend-finder/components/signal-workbench-table.tsx` - Added expanded evidence row content.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T014 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T014 implementation.

**BQC Fixes**:

* Failure path completeness: rows with no evidence, no links, no snippets, and no assets render explicit messages.
* Error information boundaries: evidence rows render public display fields and sanitized labels only.

***

### Task T013 - Create dense sortable workbench table

**Started**: 2026-06-08 03:13 **Completed**: 2026-06-08 03:19 **Duration**: 6 minutes

**Notes**:

* Added a fixed-width dense table with sortable headers, stable column dimensions, horizontal overflow, row expansion buttons, and density-aware spacing.
* Sort headers expose `aria-sort` and expansion uses native buttons with `aria-expanded` and detail IDs.

**Files Changed**:

* `src/extensions/trend-finder/components/signal-workbench-table.tsx` - Added dense sortable table and expansion shell.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T013 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T013 implementation.

**BQC Fixes**:

* Accessibility and platform compliance: sortable headers and expand controls use native buttons and ARIA states.
* Contract alignment: table renders derived row models rather than mutating generated topic data.

***

### Task T012 - Create triage controls

**Started**: 2026-06-08 03:09 **Completed**: 2026-06-08 03:13 **Duration**: 4 minutes

**Notes**:

* Added local triage state buttons for acted-on, ignored, and revisit.
* Added bounded local note editing, save, clear, reset, refresh, disabled busy state, and polite live announcements.

**Files Changed**:

* `src/extensions/trend-finder/components/signal-triage-controls.tsx` - Added row triage controls.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T012 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T012 implementation.

**BQC Fixes**:

* Duplicate action prevention: controls disable writes while the hook reports a save in flight.
* State freshness on re-entry: users can explicitly refresh row state, and the hook reloads on page re-entry.
* Accessibility and platform compliance: state buttons expose pressed state and status changes use a polite live region.

***

### Task T011 - Create workbench controls

**Started**: 2026-06-08 03:04 **Completed**: 2026-06-08 03:09 **Duration**: 5 minutes

**Notes**:

* Added search, filter select groups, density controls, result summary, reset action, and non-ready status messaging.
* Controls use native inputs/selects/buttons and compact labels for dense operator scanning.

**Files Changed**:

* `src/extensions/trend-finder/components/signal-workbench-controls.tsx` - Added Workbench control bar.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T011 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T011 implementation.

**BQC Fixes**:

* Accessibility and platform compliance: controls use native form elements, labels, status role, and pressed states.
* Failure path completeness: loading, empty, error, and offline states can be surfaced by callers.

***

### Task T009 - Create triage hook

**Started**: 2026-06-08 03:00 **Completed**: 2026-06-08 03:04 **Duration**: 4 minutes

**Notes**:

* Added `useSignalWorkbenchTriage` for browser storage load, save, note edits, row reset, global reset, and reload.
* Added revalidation on visibility changes, focus, cross-tab storage events, and explicit reentry keys.
* Added duplicate-trigger prevention while local writes are in flight.

**Files Changed**:

* `src/extensions/trend-finder/hooks/use-signal-workbench-triage.ts` - Added triage storage hook.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T009 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T009 implementation.

**BQC Fixes**:

* Duplicate action prevention: write helpers return `false` while a storage write is in flight.
* State freshness on re-entry: visibility, focus, storage, and reentry-key changes reload persisted triage state.
* Failure path completeness: storage failures surface through hook warnings.

***

### Task T008 - Add deterministic sorting

**Started**: 2026-06-08 03:00 **Completed**: 2026-06-08 03:00 **Duration**: 1 minute

**Notes**:

* Added sort keys and comparators for all requested workbench columns.
* Added stable tie-breaking by rank, score, topic name, and topic ID.

**Files Changed**:

* `src/extensions/trend-finder/signal-workbench-model.ts` - Added sort state, sort keys, and deterministic comparators.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T008 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T008 implementation.

**BQC Fixes**:

* Contract alignment: sorted rows remain derived objects and do not mutate the source payload.

***

### Task T007 - Add filter facets and application

**Started**: 2026-06-08 02:59 **Completed**: 2026-06-08 03:00 **Duration**: 1 minute

**Notes**:

* Added default filter state, facet count builders, and filter application for all requested workbench dimensions.
* Runtime/fallback filtering matches both runtime status and analysis provenance so deterministic fallback runs remain discoverable.

**Files Changed**:

* `src/extensions/trend-finder/signal-workbench-model.ts` - Added filter types, defaults, facet builders, and filter application.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T007 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T007 implementation.

**BQC Fixes**:

* State freshness on re-entry: filters are pure state inputs and recompute from current rows after triage reloads.
* Contract alignment: facet values come from schema enums and derived local triage state.

***

### Task T006 - Add deterministic search indexing

**Started**: 2026-06-08 02:58 **Completed**: 2026-06-08 02:59 **Duration**: 1 minute

**Notes**:

* Added normalized row search text covering topic names, summaries, creator angles, hooks, audience questions, evidence titles, snippets, source names, and source roles.
* Added query normalization for deterministic matching in filter application.

**Files Changed**:

* `src/extensions/trend-finder/signal-workbench-model.ts` - Added search indexing and query normalization.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T006 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T006 implementation.

**BQC Fixes**:

* Contract alignment: search reads only generated topic/evidence/source display fields and derived labels; it does not inspect private runtime data.

***

### Task T005 - Create workbench row projection helpers

**Started**: 2026-06-08 02:51 **Completed**: 2026-06-08 02:58 **Duration**: 7 minutes

**Notes**:

* Added pure topic and evidence row projections in `signal-workbench-model.ts`.
* Derived score bands, movement labels, source role and health labels, actionability bands, relative lift labels, asset availability labels, published timestamps, triage state, and explicit missing-data labels.
* Used copies and derived maps so generated `TrendFinderData` objects are not mutated.

**Files Changed**:

* `src/extensions/trend-finder/signal-workbench-model.ts` - Added workbench model types and row projection helpers.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T005 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T005 implementation.

**BQC Fixes**:

* Contract alignment: row models preserve existing schema enums and label helpers instead of inventing incompatible values.
* Failure path completeness: missing evidence, missing assets, unknown source health, and unavailable actionability project explicit labels.

***

### Task T004 - Create local triage storage contract

**Started**: 2026-06-08 02:47 **Completed**: 2026-06-08 02:51 **Duration**: 4 minutes

**Notes**:

* Added versioned `ai-os.trend-finder.signal-workbench.v1` storage contract.
* Added bounded notes, row caps, defensive parsing, invalid-entry drops, topic dedupe, and pure helpers for state, note, clear, and reset actions.
* Kept storage independent of generated Trend Finder payloads and source caches.

**Files Changed**:

* `src/extensions/trend-finder/signal-workbench-storage.ts` - Added local-only triage storage contract and helpers.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T004 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T004 implementation.

**BQC Fixes**:

* Trust boundary enforcement: malformed JSON, unsupported versions, invalid states, empty topic IDs, and oversize rows are rejected or bounded in storage parsing.
* Failure path completeness: read/write failures return caller-visible warnings instead of silently swallowing localStorage errors.

***

### Task T003 - Confirm Outlier Lab reference boundaries

**Started**: 2026-06-08 02:46 **Completed**: 2026-06-08 02:47 **Duration**: 1 minute

**Notes**:

* Reviewed `EXAMPLES/outlier-lab/build.py` for dense table, local filter state, sorting, row actions, and result count patterns.
* Confirmed the Trend Finder workbench will use topic/evidence/source language and separate local triage state instead of Instagram/Reels naming or source data mutation semantics.

**Files Changed**:

* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T003 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T003 verification.

**BQC Fixes**:

* N/A - verification task only.

***

### Task T002 - Confirm workbench fixture coverage

**Started**: 2026-06-08 02:46 **Completed**: 2026-06-08 02:46 **Duration**: 1 minute

**Notes**:

* Reviewed `fixtures.ts` for mixed source roles, source health, source-local actionability, movement states, hidden-gem topics, varied scores, and asset states.
* Confirmed workbench-specific edge cases can be covered by focused test builders without changing generated data semantics.

**Files Changed**:

* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T002 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T002 verification.

**BQC Fixes**:

* N/A - verification task only.

***

### Task T001 - Verify Trend Finder IA and data boundaries

**Started**: 2026-06-08 02:46 **Completed**: 2026-06-08 02:46 **Duration**: 1 minute

**Notes**:

* Verified static tab registration and hero mapping in `client.tsx`.
* Verified `TrendFinderData`, topic, evidence, source, source-local, asset, runtime, provenance, and Watchlist contracts in `schema.ts`.
* Verified visibility storage uses an `ai-os` key, local defensive parsing, and known view IDs in `visibility-config.ts`.

**Files Changed**:

* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/tasks.md` - Marked T001 complete.
* `.spec_system/specs/phase24-session06-signal-workbench-local-triage/implementation-notes.md` - Logged T001 verification.

**BQC Fixes**:

* N/A - verification task only.

***

## Task Log

### 2026-06-08 - Session Start

**Environment verified**:

* [x] Prerequisites confirmed
* [x] Tools available
* [x] Directory structure ready

***


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