agent: lumotia-rebrand — docs, scripts, root config, residuals

Phase 9 of the rebrand cascade. Sweep covers everything the Phase 8
frontend pass deliberately skipped: docs/, root markdown, scripts,
Cargo.toml descriptions, code comments that survived earlier
word-boundary sed, plus a handful of identifiers caught on the final
verify pass.

transcription-app changes:
- README.md, HANDOVER.md, KNOWN-ISSUES.md, run.sh — magnotia/Magnotia
  -> lumotia/Lumotia.
- docs/ — sweep across all subdirs except docs/handovers/ (preserved
  as immutable audit trail). Includes architecture-map references
  to magnotia_core::*, magnotia_storage::*, etc. now pointing at
  lumotia_*; dev-setup.md tracing output examples (lumotia_startup
  target); brief/ + superpowers/ + issues/ + whisper-ecosystem/ +
  audit/.
- Cargo.toml descriptions on 9 crates (core, audio, cloud-providers,
  hotkey, llm, mcp, plus referenced others).
- crates/core/src/{error,hardware,recommendation,paths}.rs +
  crates/audio/src/wav.rs + crates/llm/src/model_manager.rs +
  crates/cloud-providers/src/keystore.rs + crates/mcp/src/lib.rs —
  doc comments and a model-manager user-agent string.
- Caught on final pass: BroadcastChannel("magnotia_task_sync") -> ...
  ("lumotia_task_sync"); magnotia_locale i18n localStorage key
  renamed + migration shim added; CSS keyframe names
  magnotiaPulse / magnotiaBar / magnotiaFade renamed in the design-
  system kit; magnotia_viewer_item / magnotia_viewer_mode handoff
  keys renamed in HistoryPage + viewer/+page.svelte; src/assets/
  wordmark.svg text.
- src-tauri/src/lib.rs comment cleanup ("magnotia era" was sed'd
  to "lumotia era" earlier — restored).

Preserved (intentional):
- crates/core/src/paths.rs — keeps "magnotia" / "Magnotia" / ".magnotia"
  legacy detection strings in legacy_and_target_paths() so the
  migration shim can still find user data from the magnotia era.
- src/lib/stores/{page,focusTimer}.svelte.ts + src/lib/i18n/index.ts
  — migration call sites reference the legacy magnotia keys
  deliberately.
- docs/handovers/ — historical audit trail.

cargo build --workspace passes. npm run check: 0 errors / 0 warnings
(3958 files). cargo test --workspace: 339 pass / 0 fail.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/superpowers/plans/2026-05-12-engine-slop-residuals.md

@@ -145,7 +145,7 @@ Each area is independent. They can be tackled in any order, but the suggested or
 - `crates/audio/src/streaming_resample.rs` — extend `#[cfg(test)]` module
 - Likely also `crates/transcription/src/streaming/rms_vad.rs` — VAD has equally testable invariants
 
-**Acceptance:** `cargo test -p magnotia-audio` includes property tests. Property tests have run with at least 1000 cases per invariant.
+**Acceptance:** `cargo test -p lumotia-audio` includes property tests. Property tests have run with at least 1000 cases per invariant.
 
 ### E. Frontend/backend error boundary cleanup
 
@@ -189,19 +189,19 @@ if [ "${XDG_SESSION_TYPE:-}" = "wayland" ]; then
     export GDK_BACKEND="${GDK_BACKEND:-x11}"
     export WINIT_UNIX_BACKEND="${WINIT_UNIX_BACKEND:-x11}"
 fi
-exec /usr/lib/magnotia/magnotia-bin "$@"
+exec /usr/lib/lumotia/lumotia-bin "$@"
 ```
 
 Per-format wrapper locations:
 
-- `.deb` / `.rpm`: ship the wrapper as `/usr/bin/magnotia`; binary lives elsewhere.
+- `.deb` / `.rpm`: ship the wrapper as `/usr/bin/lumotia`; binary lives elsewhere.
 - AppImage: `AppRun` is the wrapper.
 - Flatpak: wrapper under `/app/bin/`; the manifest's `command` points at it.
 
 **Fallback — static `.desktop` `Exec`:**
 
 ```desktop
-Exec=env WEBKIT_DISABLE_DMABUF_RENDERER=1 GDK_BACKEND=x11 WINIT_UNIX_BACKEND=x11 magnotia %U
+Exec=env WEBKIT_DISABLE_DMABUF_RENDERER=1 GDK_BACKEND=x11 WINIT_UNIX_BACKEND=x11 lumotia %U
 ```
 
 User-set values do not win through this path (the `env` invocation hardcodes them in the child env). Document the terminal-launch override path in user-facing docs.