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>

src-tauri/src/commands/llm.rs

@@ -182,7 +182,7 @@ pub struct LlmTestResult {
 /// The point is that the user sees "Not enough GPU memory — pick a
 /// smaller tier" rather than a raw C++ exception bubbled up from
 /// llama.cpp. Mirrors OpenWhispr's "Test connection" UX for cloud
-/// LLMs, adapted to Magnotia's local stack.
+/// LLMs, adapted to Lumotia's local stack.
 #[tauri::command]
 pub async fn test_llm_model(
     window: tauri::WebviewWindow,
@@ -293,7 +293,7 @@ fn classify_llm_load_error(raw: &str) -> (&'static str, &'static str) {
     } else if lower.contains("permission denied") || lower.contains("access is denied") {
         (
             "load-failed-permission",
-            "Permission denied reading the model file. Check ownership of ~/.magnotia/models/llm/.",
+            "Permission denied reading the model file. Check ownership of ~/.lumotia/models/llm/.",
         )
     } else {
         (
@@ -391,7 +391,7 @@ pub async fn cleanup_transcript_text_cmd(
         // macOS: pin a power assertion for the duration of the LLM
         // generation so App Nap can't decide to throttle us mid-token.
         // No-op on every other OS. Item #9.
-        let _power_guard = PowerAssertion::begin("magnotia LLM cleanup");
+        let _power_guard = PowerAssertion::begin("lumotia LLM cleanup");
         llm_cleanup_text(&engine, &transcript, &profile_terms, resolved_preset)
     })
     .await
@@ -414,7 +414,7 @@ pub async fn extract_content_tags_cmd(
     }
     let engine = state.llm_engine.clone();
     tokio::task::spawn_blocking(move || {
-        let _power_guard = PowerAssertion::begin("magnotia LLM content-tag extraction");
+        let _power_guard = PowerAssertion::begin("lumotia LLM content-tag extraction");
         engine.extract_content_tags(&transcript)
     })
     .await