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/brief/design-principles.md

@@ -1,4 +1,4 @@
-<!-- Source: Magnotia Master Brief — §4 Design Principles -->
+<!-- Source: Lumotia Master Brief — §4 Design Principles -->
 
 ### Design principles
 
@@ -21,7 +21,7 @@
 #### Interaction & UX
 - **Low-dopamine design.** Non-judgmental tone throughout. No guilt messaging for missed tasks. No aggressive review prompts.
 - **WIP limits as a design constraint.** The interface must never present more than 1–3 active tasks simultaneously on the primary view. AI prioritises; the UI constrains. A brain dump can contain 50 items — the "Now" view shows only the next action. This is not a nice-to-have; it is the core mechanism for preventing the freeze response.
-- **Automated context restoration.** Working memory traces decay within ~8 seconds of interruption. If a user clicks away, gets distracted, or closes the app mid-task, Magnotia must perfectly preserve their exact state — cursor position, active timer, active task, scroll position — so they can resume with zero "Where was I?" cognitive latency. This must be seamless and automatic. No "Resume session?" dialogue. Just open the app and be exactly where you left off.
+- **Automated context restoration.** Working memory traces decay within ~8 seconds of interruption. If a user clicks away, gets distracted, or closes the app mid-task, Lumotia must perfectly preserve their exact state — cursor position, active timer, active task, scroll position — so they can resume with zero "Where was I?" cognitive latency. This must be seamless and automatic. No "Resume session?" dialogue. Just open the app and be exactly where you left off.
 - **Literal labels always.** Ambiguous icons (standalone gear, hamburger menu) force literal thinkers to guess function, expending precious mental energy. Always pair icons with literal text labels.
 - **Progressive disclosure.** Break complex onboarding or tasks down to reveal only the immediate next step, preventing the brain from freezing.
 - **Motion control.** All non-essential animation and auto-playing media must be off by default or controlled via a prominent "Reduce Motion" / "Calm Mode" toggle. Unexpected animations can cause physical distress and sensory overload.
@@ -29,7 +29,7 @@
 
 #### Onboarding
 - Must be understandable within 30 seconds. If a neurodivergent user can't figure it out immediately, they won't return.
-- **90-second hard threshold.** Empirical HCI research (see Appendix A4) shows that tools taking longer than 90 seconds to configure trigger task abandonment cascades in ADHD users, increasing cognitive load by 2.3x. No feature in Magnotia should require more than 90 seconds of setup. Voice capture must work in under 3 seconds from app open.
+- **90-second hard threshold.** Empirical HCI research (see Appendix A4) shows that tools taking longer than 90 seconds to configure trigger task abandonment cascades in ADHD users, increasing cognitive load by 2.3x. No feature in Lumotia should require more than 90 seconds of setup. Voice capture must work in under 3 seconds from app open.
 - Progressive disclosure applies here especially — show one step at a time, never the full complexity.
 
 #### Future consideration: adaptive UI