Step 8: shared fixture corpus seeded at D:\DEV\Project\rclone-jav\fixtures\

Adds a shared JAV-ID fixture corpus at the Python repo root (conceptually
joint with this extension). Three JSON files:

  filename-extraction.json   12 cases — Python extract_id contract
  query-extraction.json      10 cases — extension content.js normalizeId
  shared-normalization.json   5 cases — both sides must agree

Plus a README.md documenting format, ownership, and one intentional
cross-side divergence (the compact `FC2PPV1841460` form: extension
normalizes it from page titles, Python `extract_id` does not — it
doesn't realistically appear in filenames on disk).

A self-contained Python runner at fixtures/run.py exercises extract_id
and normalize_id against the relevant corpora. No third-party deps,
loads rc-jav.py in place. All 17 Python-side cases pass against the
current rc-jav.py. Output uses ASCII separators (`->`, `|`) instead of
unicode arrows/middots so the runner works on Windows cp1252 consoles.

No Node-side runner today: content.js lives inside an injected IIFE
and a Node runner would have to duplicate the regexes. The JSON corpus
is the canonical spec until content.js is refactored to be importable.

This commit only updates AGENTS.md in this repo — the fixture files
themselves live in the Python repo at D:\DEV\Project\rclone-jav\fixtures\
which is not currently git-tracked.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

AGENTS.md

@@ -138,13 +138,13 @@ Done in rc-jav catalog loading. Catalog CSV/XML paths are normalized from Window
 6. **options.js split — Cache & Scans + Duplicate Review paired extraction.** `options.js` 3133 → 2356 lines. New files: `options-cache.js` (161 lines, Cache & Scans block), `options-dupe-review.js` (616 lines, Dup Review + Keep Ranking incl. bottom `loadKeepRanking()` call). Script-tag order in `options.html`: cache → dupe-review → options.js (body bottom). Cross-script binding visibility (vanilla classic scripts share global declarative env): Library Issues code still in options.js reads `_configuredScanRoots` / `_cacheSkippedByRemote` / calls `rememberConfiguredScanRoots` from cache file by bare reference. Calls to `escapeHtml` / `openModal` / `closeModal` / `keepActionViewport` / `clearNativeRepairCard` / `renderNativeMessagingFailure` from extracted files all occur inside event handlers (resolved at call time, after options.js parses). Repo `git init`'d before this step; baseline commit `f8e781f` is the rollback point. Verified by `node --check` on each file and on concatenated script.
 6b. **options.js split — Library Issues extraction.** `options.js` 2356 → 1903 lines. New file: `options-library-issues.js` (453 lines) — covers `lastLibraryIssues`, `_libraryIssuesDirty`, `renderLibraryIssues`, `_closeLibraryIssues`, and the bottom IIFE that wraps `_optScanTimer` / `_setOptScanningState` / `_pollOptProgress` for optimization-scan progress polling. Block was fully self-contained (no external callers of its identifiers). Reads `_configuredScanRoots` / `_cacheSkippedByRemote` / calls `rememberConfiguredScanRoots` from `options-cache.js` — same cross-file binding pattern proven in step 6. Script-tag order in `options.html`: cache → dupe-review → library-issues → options.js. `node --check` passes on each file and on concatenation; line count of concat (3133) matches pre-split total exactly.
 7a. **Bulk Check standalone window.** New `bulk-check.{html,js,css}` opened as detached `chrome.windows.create({ type: 'popup', width: 640, height: 540 })`. Launcher = 📋 icon button in popup header next to ⚙ Options; click sends `open-bulk-check` message to background and closes the popup. Background owns the lifecycle: `openBulkCheckWindow()` reads `chrome.storage.session.bulkCheckWindowId`; existing id → `chrome.windows.update({ focused, drawAttention })`; failure or no id → create new window + stash id. `chrome.windows.onRemoved` clears the stale id on close. Last-paste persisted to `chrome.storage.local.bulkCheckLastPaste` (debounced 500ms), restored on window open. `quickMode` read from settings on each run (parity with old options behavior). Removed the Bulk ID Check fieldset from `options.html` (Library Review pane description updated to note the relocation) and its handlers from `options.js` (1903 → 1852 lines). No manifest permission changes needed.
+8. **Shared fixture corpus.** Seeded `D:\DEV\Project\rclone-jav\fixtures\` (top-level in the Python repo, conceptually shared with this extension). Files: `filename-extraction.json` (12 cases, Python `extract_id` contract), `query-extraction.json` (10 cases, extension `content.js` `normalizeId` contract), `shared-normalization.json` (5 cases, both sides must agree), `README.md`, and a self-contained Python runner `run.py` (no third-party deps; imports `rc-jav.py` in place). All 17 Python-side cases pass against current `rc-jav.py`. The runner uses `|` and `->` instead of `·` and `→` so it works on Windows cp1252 consoles. Documented one intentional divergence: the extension normalizes the compact `FC2PPV1841460` form (page-title surface) while Python `extract_id` does not (filename surface — compact form doesn't appear on disk). No Node-side runner today — `content.js` lives in an injected IIFE and importing it would require duplicating regexes; the JSON corpus is the canonical spec until that lands.
 
 (Step 4 in the plan is a paired-extraction sub-task of step 6; folded into step 6 ship.)
 
 **Pending (in execution order):**
 
 - **Step 6c — finish options.js split (optional).** Remaining options.js (1852 lines) still holds: settings load/save, backup/restore, recent activity, search test bench, adapters, ID normalizers, part detectors, element picker, overlay previews, diagnostics, profiles, paths, and the bottom-entry IIFE. Candidates for extraction: Diagnostics (~250 lines), Profiles (~265 lines), Adapters + ID normalizers + Part detectors as a "rules editors" file (~330 lines combined). Diminishing returns past this point — bottom IIFE + load/save core should stay in `options.js` as the entry point.
-- **Step 8 — Shared fixture corpus.** Top-level `D:\DEV\Project\rclone-jav\fixtures\` (neutral location, NOT inside Python or extension repo). JSON cases for query-ID extraction (extension), filename ID extraction (Python), shared normalization.
 - **Step 9 — Cache contract design.** CACHE_VERSION already exists (currently 3). Add ID_RULES_VERSION concept: schema bump = force rebuild, rules bump = warn-and-mark-stale.
 - **Step 10 — `rc-jav.py` module split** into `rcjav/` package (ids, cache, dupes, catalog, rclone_io, output, cli). Keep `rc-jav.py` as thin entrypoint that imports from `rcjav.cli.main`.
 - **Step 11 — Host fast-path benchmark and decide.** Measure popup search latency under (a) idle Python and (b) Python actively scanning. If host fast path is the only thing keeping popup responsive under scan = narrow to dict lookup only and document. If not needed = delete entirely.