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>

crates/cloud-providers/Cargo.toml

@@ -2,7 +2,7 @@
 name = "lumotia-cloud-providers"
 version = "0.1.0"
 edition = "2021"
-description = "Provider trait and BYOK cloud STT scaffolding for Magnotia (Wyrdnote pending rebrand)"
+description = "Provider trait and BYOK cloud STT scaffolding for Lumotia (Wyrdnote pending rebrand)"
 
 [dependencies]
 lumotia-core = { path = "../core" }

crates/cloud-providers/src/keystore.rs

@@ -1,7 +1,7 @@
 use std::collections::HashMap;
 use std::sync::{Mutex, OnceLock};
 
-/// Store an API key in Magnotia's process-local keystore.
+/// Store an API key in Lumotia's process-local keystore.
 ///
 /// Keys are held in memory for the lifetime of the process and are lost on
 /// exit. This avoids the undefined behaviour of mutating process environment
@@ -19,7 +19,7 @@ pub fn store_api_key(provider: &str, key: &str) {
         .insert(provider_env_key(provider), key.to_string());
 }
 
-/// Retrieve an API key from Magnotia's process-local keystore.
+/// Retrieve an API key from Lumotia's process-local keystore.
 ///
 /// Returns a previously stored in-memory key when present, otherwise falls
 /// back to the read-only `LUMOTIA_API_KEY_<PROVIDER>` environment variable so