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/architecture-map/02-tauri-runtime/commands/audio.md

@@ -21,7 +21,7 @@ last_verified: 2026/05/09
   - `stop_native_capture(window, state) -> Result<Vec<f32>, String>` — main-window only. Awaits the worker join barrier (RB-06) and returns the accumulated samples.
   - `save_audio(window, app, samples, output_folder: Option<String>) -> Result<String, String>` — main-window only. Writes a fresh WAV to `app_local_data_dir/recordings/` (or a user-chosen folder) and returns its absolute path.
 - Events emitted: `native-pcm` (payload `{ samples: Vec<f32> }`, ~0.5 s of 16 kHz mono per emit) — `src-tauri/src/commands/audio.rs:249` and `:274`.
-- Depends on: `magnotia_audio::{DeviceInfo, MicrophoneCapture, WavWriter, write_wav}`, `magnotia_core::types::AudioSamples`, `magnotia_core::constants::WHISPER_SAMPLE_RATE`. Plus `tokio::{mpsc, Mutex, JoinHandle, spawn_blocking, sleep}` and `std::sync::{Arc, Mutex, atomic::AtomicBool}`.
+- Depends on: `lumotia_audio::{DeviceInfo, MicrophoneCapture, WavWriter, write_wav}`, `lumotia_core::types::AudioSamples`, `lumotia_core::constants::WHISPER_SAMPLE_RATE`. Plus `tokio::{mpsc, Mutex, JoinHandle, spawn_blocking, sleep}` and `std::sync::{Arc, Mutex, atomic::AtomicBool}`.
 - Called from frontend at: dictation page (start / stop), Settings → Audio (device list), file-import flow (save_audio).
 
 ## What's in here
@@ -75,11 +75,11 @@ Public helper used by `commands::live::start_live_transcription_session`. Resolv
 
 ### `recording_filename` (`src-tauri/src/commands/audio.rs:365`)
 
-Deterministic filename: `magnotia-<unix_secs>-<nanos:09>-<counter:04>.wav`. The counter is a process-lifetime `AtomicU64` (`RECORDING_COUNTER`) bumped on each call. The combination defeats wall-clock collisions both across launches (secs change) and within the same nanosecond (counter changes).
+Deterministic filename: `lumotia-<unix_secs>-<nanos:09>-<counter:04>.wav`. The counter is a process-lifetime `AtomicU64` (`RECORDING_COUNTER`) bumped on each call. The combination defeats wall-clock collisions both across launches (secs change) and within the same nanosecond (counter changes).
 
 ### `persist_audio_samples` and `save_audio` (`src-tauri/src/commands/audio.rs:512`, `:531`)
 
-`save_audio` is the public command. Calls `persist_audio_samples`, which resolves the recording path, then calls `magnotia_audio::write_wav` inside `spawn_blocking`. Returns the absolute path as a string.
+`save_audio` is the public command. Calls `persist_audio_samples`, which resolves the recording path, then calls `lumotia_audio::write_wav` inside `spawn_blocking`. Returns the absolute path as a string.
 
 ## Data flow
 
@@ -90,7 +90,7 @@ Deterministic filename: `magnotia-<unix_secs>-<nanos:09>-<counter:04>.wav`. The
 ## Watch-outs
 
 - The in-memory buffer is capped at 10 minutes. Anything longer relies on the temp WAV; the frontend cannot just `stop_native_capture` and treat the returned vec as ground truth for long sessions. Today's UI assumes short captures, but the cap should be surfaced if you build a long-form recorder.
-- The downsampler is naive decimation. Acceptable for speech but not for music. If you ever extend Magnotia to general audio, swap in `magnotia_audio::StreamingResampler` (which is what `commands::live` uses).
+- The downsampler is naive decimation. Acceptable for speech but not for music. If you ever extend Lumotia to general audio, swap in `lumotia_audio::StreamingResampler` (which is what `commands::live` uses).
 - `start_native_capture` does *not* engage `PowerAssertion` (App Nap pinning). `commands::live::run_live_session` does. If you build a long-form non-live recorder on top of this, add the assertion.
 - The worker emits `native-pcm` to the entire app handle (not a specific window). Every webview that listens will receive the chunks. If you ever route audio to a non-main window, double-check this is what you want.
 - `stop_worker_awaits_full_termination_no_writes_after_join` (`src-tauri/src/commands/audio.rs:454`) is the regression test for RB-06. Do not change `stop_worker` to a fire-and-forget pattern.