Merge PR #1536

# Conflicts:
#	docs/parity-checklist.md
#	docs/whats-new.md

docs/parity-checklist.md

@@ -4,6 +4,7 @@
 > **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-13 · **Change:** minor (LR-BEHAV-AUTOSAVE: damaged snapshots are repaired on open; LR-MERGE-HDR: merges of raws without colour matrices keep their colour (#965); rapid slider entry; LR-PROF-CAMERACOLOR: tone curve from black-and-white camera JPEGs; LR-VIEW-ZOOM, LR-VIEW-COMPARE: Compare and Reference zoom windows; LR-IMP-FORMATS, LR-IMP-CAMERA-COVERAGE: EOS R5 Mark II CR3 decodes; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md; filesystem history retry/Undo/Redo evidence; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
 > **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-13 · **Change:** minor (LR-EDIT-OPTICS-PROFILE: Nikon Z 6II / Z f in-file distortion correction; LR-MERGE-HDR: merges of raws without colour matrices keep their colour (#965); rapid slider entry; LR-PROF-CAMERACOLOR: tone curve from black-and-white camera JPEGs; LR-VIEW-ZOOM, LR-VIEW-COMPARE: Compare and Reference zoom windows; LR-IMP-FORMATS, LR-IMP-CAMERA-COVERAGE: EOS R5 Mark II CR3 decodes; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md; filesystem history retry/Undo/Redo evidence; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
 > **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (rapid slider entry; LR-PROF-CAMERACOLOR: tone curve from black-and-white camera JPEGs; LR-VIEW-ZOOM, LR-VIEW-COMPARE: Compare and Reference zoom windows; LR-IMP-FORMATS, LR-IMP-CAMERA-COVERAGE: EOS R5 Mark II CR3 decodes; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md; filesystem history retry/Undo/Redo evidence; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md; Model folder/error/retry) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-13 · **Change:** minor (LRC-LIB-CATALOG-IMPORT: catalogs whose tables are all in the WAL open; LR-MERGE-HDR: merges of raws without colour matrices keep their colour (#965); rapid slider entry; LR-PROF-CAMERACOLOR: tone curve from black-and-white camera JPEGs; LR-VIEW-ZOOM, LR-VIEW-COMPARE: Compare and Reference zoom windows; LR-IMP-FORMATS, LR-IMP-CAMERA-COVERAGE: EOS R5 Mark II CR3 decodes; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md; filesystem history retry/Undo/Redo evidence; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
 
 The measured, row-by-row checklist: one row per Lightroom feature, menu item and shortcut, what we
 have and what is missing. It answers *does the feature exist?* (feature breadth). Whether it is good
@@ -697,7 +698,7 @@ From `08-lightroom-classic-extras.md` (Classic-only features) and part 2 of `06-
 | LRC-LIB-SURVEY | Survey view | P2 | ✅ | `cmd:view.survey` | N |
 | LRC-LIB-REFVIEW | Reference view | P2 | ✅ | `cmd:view.reference`, `cmd:photo.setReference`, `crates/ui-egui/src/panels/compare.rs` (`show_reference`) | View ▸ Reference View (⇧R): the reference photo beside the active one (edited with the Edit panel); photo menu ▸ Set as Reference Photo; each pane says “Rendering…” (widget `compare:rendering:<pane>`) or “This photo can't be opened” (`compare:renderFailed:<pane>`) as the loupe does |
 | LRC-LIB-CATALOG-PANEL | Catalog sets | P1 | ✅ | `cmd:library.source` (`missing`) | all, recently added, picks, recently deleted, missing photos (when any) |
-| LRC-LIB-CATALOG-IMPORT | Native Lightroom Classic catalog import | P1 | 🟡 | `cmd:library.inspectLightroom`, `cmd:library.importLightroom`, `crates/engine/src/lightroom_catalog.rs`, `docs/lightroom-catalog-import.md` | read-only `.lrcat` plus committed WAL pages, in-tree read-only Rust SQLite B-tree reader; background inspection/import with progress/cancellation, per-open library identity checks; originals in place, ratings/flags/labels, XMP, hierarchical keywords, collection sets/regular collections, virtual copies, mapped develop settings; stable reimport identities, undo, missing-file placeholders, a root folder not found at its recorded path looked up relative to the catalog (Lightroom's `relativePathFromCatalog`, so a project folder copied from another computer stays linked; reported as a warning), existing edits preserved. Best-effort deduplicated recovery archives retain settings/history/snapshots/collection rules (32 MiB each, eight archives/128 MiB aggregate); archive limits/write failures and optional-table limits warn without blocking photo import; unrelated unsupported tables and opaque SQL BLOBs skipped. Custom white balance on relative-WB raws (`RAW` in Lightroom's terms) stays As Shot and is reported, since the catalog keeps no as-shot white to shift from (issue #510). Adobe rendering, AI data and native history replay remain incomplete; no writes to Lightroom catalogs. Open Library given a Lightroom catalog folder, an `.lrdata` / `.lrcat-data` folder or the `.lrcat` makes no library there and offers this import with the catalog found (`cmd:app.openLibrary`, `crates/engine/src/lightroom_folder.rs`; issue #891) |
+| LRC-LIB-CATALOG-IMPORT | Native Lightroom Classic catalog import | P1 | 🟡 | `cmd:library.inspectLightroom`, `cmd:library.importLightroom`, `crates/engine/src/lightroom_catalog.rs`, `docs/lightroom-catalog-import.md` | read-only `.lrcat` plus committed WAL pages (also a catalog whose tables are all still in its WAL: the main file's schema format 0 is an empty schema), in-tree read-only Rust SQLite B-tree reader; background inspection/import with progress/cancellation, per-open library identity checks; originals in place, ratings/flags/labels, XMP, hierarchical keywords, collection sets/regular collections, virtual copies, mapped develop settings; stable reimport identities, undo, missing-file placeholders, a root folder not found at its recorded path looked up relative to the catalog (Lightroom's `relativePathFromCatalog`, so a project folder copied from another computer stays linked; reported as a warning), existing edits preserved. Best-effort deduplicated recovery archives retain settings/history/snapshots/collection rules (32 MiB each, eight archives/128 MiB aggregate); archive limits/write failures and optional-table limits warn without blocking photo import; unrelated unsupported tables and opaque SQL BLOBs skipped. Custom white balance on relative-WB raws (`RAW` in Lightroom's terms) stays As Shot and is reported, since the catalog keeps no as-shot white to shift from (issue #510). Adobe rendering, AI data and native history replay remain incomplete; no writes to Lightroom catalogs. Open Library given a Lightroom catalog folder, an `.lrdata` / `.lrcat-data` folder or the `.lrcat` makes no library there and offers this import with the catalog found (`cmd:app.openLibrary`, `crates/engine/src/lightroom_folder.rs`; issue #891) |
 | LRC-LIB-CATALOG-LOCK | Catalog open in one program at a time | P1 | ✅ | `cmd:app.openLibrary`, `crates/catalog/src/lock.rs`, `crates/engine/src/library.rs` (`open_library`) | exclusive OS lock on `catalog.lock` for the session (app and `lightcraft-cli --library`); a second opener is refused with who has it (`catalog.lock.owner`: program, process, computer); released by the OS on a crash, so never stale; file systems without locks open unprotected with a warning (the app's notices, `library.info` → `settingsWarnings`, and the CLI's stderr; issue #171); no read-only mode; the browser build (OPFS) has no guard across tabs yet. A library that can't be opened at launch (locked, unreadable, newer format, drive missing) shows a window — Try Again, Choose Another Library…, Continue Without Saving (then a banner; nothing written), Quit — instead of a silent demo session (`crates/ui-egui/src/panels/library_problem.rs`); the lock is released explicitly when the library closes, not by letting its file handle close, so a program another thread is starting at that moment (which holds a copy of every file handle until it is launched) cannot keep the library "already open" for a moment (issue #680) |
 | LRC-LIB-CATALOG-SWITCH | New / Open Recent catalog, catalog name shown | P1 | ✅ | `cmd:app.newLibrary`, `cmd:app.openLibrary`, `cmd:app.recentLibraries`, `cmd:app.clearRecentLibraries`, `crates/ui-egui/src/panels/settings.rs`, `crates/ui-egui/src/panels/left.rs` | File ▸ New Library… (name, then location), File ▸ Open Recent Library (last 8; missing ones greyed out, dropped when opened; Clear), the open library's name under My Photos and in the window title (issue #902); a library that can't be opened leaves the current one open |
 | LRC-LIB-FOLDERS | Disk folder tree | P1 | ✅ | `cmd:library.browse`, `cmd:folder.rename`, `cmd:folder.move`, `crates/ui-egui/src/panels/left.rs` (`local_section`, `folder_tree`) | standard places + the browsed folder + Browse Folder…, each an expandable tree of subfolders, breadcrumb navigation; context menu: Rename Folder…, Move Folder To…, Show in Finder (on disk, photos relinked; one undo step each: undo / redo move the folder back and forth, refused when the destination is taken) |
@@ -797,6 +798,7 @@ Latin stays upright. Advanced Japanese composition remains open. Regression cove
 |---|---|---|
 | 2026-10-13 | patch | LR-VIEW-COMPARE, LRC-LIB-COMPARE: ⌘/Ctrl- and Shift-clicks on the filmstrip in Compare change the selection as in the grid; the two photos shown stay selected and the active photo is unchanged (#187); statuses unchanged |
 | 2026-10-13 | minor | KEYC-SELECTONLYACTIVE: Edit → Select Only Active Photo (⌘⇧D) lands as a new row; status 🟡 (headless-tested, native macOS menu path unverified) |
+| 2026-10-13 | patch | LRC-LIB-CATALOG-IMPORT: a catalog whose tables are all still in its `-wal` file (main file schema format 0) opens instead of failing as an unsupported schema format; status unchanged |
 | 2026-10-11 | minor | LR-MERGE-HDR: HDR and panorama merges of raws without colour matrices (CR2, NEF, ARW…) write the colour they open with as DNG tags (issue #965); status unchanged |
 | 2026-10-12 | minor | LR-META-XMP: Read Metadata from File no longer auto-writes the sidecar it has just read, which added `lc:settings` and hid another app's later `crs:` edits (#934); status unchanged (✅) |
 | 2026-10-12 | patch | LR-IMP-CAMERA-COVERAGE: CR2 white level from the active area, not the saturated masked rows above it (issue #1272); status unchanged (🟡) |

docs/whats-new.md

@@ -95,6 +95,10 @@
   profile overrides for memory-constrained builders (issue #1196), including why packaging
   recipes can override inherited settings. Default release profiles and application behavior
   are unchanged; the guidance does not guarantee a build will fit every 16 GB machine.
+### Lightroom catalog import
+- A Lightroom Classic catalog whose changes are all still in its `.lrcat-wal` file (a new catalog Lightroom has
+  open and hasn't written back yet) imports instead of failing with "unsupported SQLite schema format".
+
 ### Slider drags on large raws
 - Dragging a slider no longer re-renders the edited photo's filmstrip thumbnail on every frame; it follows once you
   let go. On a 64 MP raw the first of those renders decoded the whole file again, which held up the loupe's