docs: architecture map (initial 5-slice generation, 105 pages)

Five-slice navigable map of the entire codebase under
docs/architecture-map/. Each slice is a self-contained
breadcrumbed sub-tree:

  01-frontend (16)              Svelte/SvelteKit UI
  02-tauri-runtime (26)         src-tauri commands + lifecycle
  03-audio-transcription (16)   audio + transcription crates
  04-llm-formatting-mcp (19)    llm, ai-formatting, mcp, cloud
  05-core-storage-hotkey-build  core, storage, hotkey, workspace,
                          (26) CI, dev glue

Plus master README.md and data-flow-end-to-end.md tracing
audio bytes from microphone to FTS5 search to MCP read.

Generated by 5 parallel subagents on 2026/05/09 against
HEAD 3c47000. Each page has YAML frontmatter, file:line code
refs, sibling cross-links, plain-English summaries.

Aggregated debt surfaced (full lists in master README):
RB-08 macOS power assertion, schema head drift v14 vs v15,
VAD blocked on ort version conflict, streaming primitives
not wired into live.rs, no prompt versioning, MCP has no
auth, cloud-providers in-memory keystore, SettingsPage
2 484 LOC, commands/live.rs 1 737 LOC, dual theme system,
brand rename to Lumenote pending across the codebase.

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

docs/architecture-map/01-frontend/pages/settings.md

@@ -0,0 +1,72 @@
+---
+name: Settings page
+type: architecture-map-page
+slice: 01-frontend
+last_verified: 2026/05/09
+---
+
+# Settings page
+
+> **Where you are:** [Architecture map](../../README.md) → [Frontend](../README.md) → [Pages overview](../pages-overview.md) → Settings
+
+**Plain English summary.** The configuration panel. Owns audio device selection, vocabulary, profiles, templates, transcription engine choice and model management (Whisper + Parakeet + LLM), the global hotkey, rituals, nudges, accessibility, text-to-speech, diagnostics, and locale selection. It is by far the largest single file in the frontend at 2 484 lines.
+
+## At a glance
+
+- **Path:** `src/lib/pages/SettingsPage.svelte`
+- **LOC:** 2 484
+- **Imports (selected):**
+  - Stores: `settings`, `saveSettings`, `profiles`, `saveProfiles`, `templates`, `saveTemplates`, `page`, `addProfileTaskList`, `removeProfileTaskList` from `page.svelte.ts`. `getPreferences`, `updatePreferences`. `profilesStore`, `DEFAULT_PROFILE_ID`. `toasts`. `refreshLlmStatus`.
+  - Components: `Card`, `Toggle`, `SegmentedButton`, `HotkeyRecorder`, `ImplementationRulesEditor`, `SettingsGroup`, `ZonePicker`, `AccessibilityControls`.
+  - Utils: `clampTextLines`, `bodyPretextLineHeight`, `pretextFontShorthand`, `formatDuration`.
+  - i18n: `_`, `SUPPORTED_LOCALES`, `setLocale`, `currentLocale`.
+  - External: `lucide-svelte` (`Check`, `Search`, `X`, `Mic`, `BookOpen`, `Type`, `Sparkles`, `SquareCheck`, `Clipboard`, `Sliders`).
+
+## Sections (top level)
+
+Built from `SettingsGroup` accordions. Top level groups (line refs are anchors in the file):
+
+1. **Audio** (`SettingsPage.svelte:1141`). Device list (from `list_audio_devices`), microphone selection.
+2. **Vocabulary** (`SettingsPage.svelte:1191`). Two nested groups:
+   - **Terms and profiles** (`SettingsPage.svelte:1197`). Vocabulary terms attached to the active profile, plus the active profile selector.
+   - **Profiles and templates** (`SettingsPage.svelte:1415`). Two further nested groups:
+     - **Profiles** (`SettingsPage.svelte:1423`). Create, rename, delete; default profile cannot be deleted.
+     - **Templates** (`SettingsPage.svelte:1481`). Per profile templates injected at recording start.
+3. **Processing** (also referred to in file as the engine + AI tier section). Phase 9c style group with `onopen` hook that probes `check_engine`, `check_parakeet_engine`, `list_models`, `detect_paste_backends`, etc.
+4. **Hotkey**. Wraps `HotkeyRecorder`. Search navigation jumps here when the user clicks the hotkey chip in another section (`SettingsPage.svelte:477`).
+5. **Rituals**. Morning triage, evening wind down toggles.
+6. **Nudges and implementation intentions**. Wraps `ImplementationRulesEditor`.
+7. **Accessibility**. Wraps `AccessibilityControls`. Theme, zone (`ZonePicker`), font family, sizes, line height, letter spacing, bionic reading, reduce motion.
+8. **Read aloud (TTS)** (`SettingsPage.svelte:759`). Voice selection from `tts_list_voices`, rate, sample play.
+9. **Diagnostics** (`SettingsPage.svelte:377-405`). Generates and saves a redacted diagnostic report.
+10. **Tasks** (sparkline toggle, relocated in Phase 9c).
+11. **Launch at login**. Wires `@tauri-apps/plugin-autostart`.
+12. **Locale**. svelte-i18n locale picker.
+
+## Key state
+
+- `audioDevices`, `downloadedModels`, `parakeetOk`, `parakeetDownloaded`, `pasteBackends`, `systemInfo`, `runtimeCapabilities`, `llmLoaded`, `llmModels`, `llmStatuses`, `ttsVoices`.
+- Search query (`X`/`Search` icons) drives a force open mode for `SettingsGroup` (`SettingsPage.svelte:432-477`).
+- Three concurrent download progress listeners: Whisper (`model-download-progress`), Parakeet (`parakeet-download-progress`), LLM (`magnotia:llm-download-progress`) (`SettingsPage.svelte:864-880`).
+
+## Tauri command surface
+
+Audio: `list_audio_devices`. Models (Whisper): `list_models`, `download_model`, `load_model`, `check_engine`. Models (Parakeet): `check_parakeet_engine`, `check_parakeet_model`, `download_parakeet_model`, `load_parakeet_model`. Models (LLM): `recommend_llm_tier`, `check_llm_model`, `download_llm_model`, `load_llm_model`, `unload_llm_model`, `delete_llm_model`, `test_llm_model`, `get_llm_status`. Capabilities: `get_runtime_capabilities`, `probe_system`, `detect_paste_backends`. TTS: `tts_list_voices`, `tts_speak`. Diagnostics: `generate_diagnostic_report`, `save_diagnostic_report`. Plus the implicit `save_preferences` invoked by the preferences store on every accessibility toggle.
+
+Events listened to: `model-download-progress`, `parakeet-download-progress`, `magnotia:llm-download-progress`.
+
+## Watch outs
+
+- 2 484 lines, hand rolled accordion, Phase 9c handover already deferred the deeper restructure. New options should be added inside the existing `SettingsGroup` topology rather than threaded into the global header.
+- `settings.theme` ("Light"/"Dark"/"System") is the legacy field; `preferences.theme` is the new one. `+layout.svelte:61-68` re maps every effect cycle. Adding new theme options needs both stores.
+- `page.current = "shutdown"` button at line 816 is the only entrance from settings into the wind down ritual (other than the tray).
+- The `model-download-progress` event payload is shared across Whisper and Parakeet listeners. Take care that progress UI does not cross wires when both downloads run concurrently (rare but possible if `+layout.svelte` triggers a prewarm while Settings is open).
+- The diagnostics path strips secrets in Rust; do not re add raw paths or env values to the report payload here.
+- Accessibility writes go through `preferences` (Tauri persisted) but `settings.fontSize` writes through `localStorage`. Two persistence channels for similar surfaces.
+
+## See also
+
+- [Components](../components.md). `SettingsGroup`, `HotkeyRecorder`, `ImplementationRulesEditor`, `ZonePicker`, `AccessibilityControls`, `Toggle`, `SegmentedButton`.
+- [Stores](../stores.md). `page` settings + profiles + templates. `preferences`. `llmStatus`.
+- [Frontend ↔ Tauri bridge](../frontend-tauri-bridge.md). All command names referenced here.
+- [Internationalisation](../i18n.md). Locale picker.