Add voice notes: on-device transcription, multi-language, watch capture

- Schema v2: Note.AudioInfo, .m4a sidecar next to the note JSON in iCloud
- AudioRecorderService (iOS/macOS) + SpeechAnalyzer transcription pipeline
  with enabled-language set and confidence-based auto-pick, re-transcribe menu
- Settings > Transcription > Languages with asset download/reserve handling
- watchOS app + accessory complication: one-button recorder, WCSession
  transferFile to phone, WatchInbox staging, direct-upsert ingestion
- Player UI, transcription status chips, quick-capture mic in notes list
- Version 0.2, changelog + README updated

project.yml

@@ -4,6 +4,7 @@ options:
   deploymentTarget:
     iOS: "26.0"
     macOS: "26.0"
+    watchOS: "26.0"
   xcodeVersion: "26.0"
   defaultConfig: Debug
 
@@ -11,7 +12,7 @@ settings:
   base:
     SWIFT_VERSION: "6.0"
     DEVELOPMENT_TEAM: ${APPLE_TEAM_ID}
-    MARKETING_VERSION: "0.1"
+    MARKETING_VERSION: "0.2"
     CURRENT_PROJECT_VERSION: "1"
     ENABLE_USER_SCRIPT_SANDBOXING: "NO"
 
@@ -26,6 +27,20 @@ packages:
     url: https://git.rzen.dev/rzen/indie-backup.git
     from: "2.0.0"
 
+# Shared post-build phase — stamps CFBundleVersion (git commit count), BuildDate, and
+# BuildHash into each target's (and dSYM's) Info.plist. Aliased into every code-bearing
+# target below so the iOS app, Mac app, watch app, and watch widget stamp identical
+# metadata (versions must match across bundles for App Store validation).
+scriptAnchors:
+  updateBuildInfo: &updateBuildInfo
+    - script: '"${SRCROOT}/Scripts/update_build_number.sh"'
+      name: Update Build Info
+      shell: /bin/sh
+      basedOnDependencyAnalysis: false
+      inputFiles:
+        - $(TARGET_BUILD_DIR)/$(INFOPLIST_PATH)
+        - $(DWARF_DSYM_FOLDER_PATH)/$(DWARF_DSYM_FILE_NAME)/Contents/Info.plist
+
 schemes:
   Notes:
     build:
@@ -40,6 +55,15 @@ schemes:
         - NotesTests
     archive:
       config: Release
+  # Per-target scheme so the watch app can be built / run on its own destination.
+  Notes Watch App:
+    build:
+      targets:
+        Notes Watch App: all
+    run:
+      config: Debug
+    archive:
+      config: Release
 
 targets:
   NotesTests:
@@ -61,10 +85,14 @@ targets:
         TEST_HOST: $(BUILT_PRODUCTS_DIR)/Contextful.app/Contextful
         BUNDLE_LOADER: $(TEST_HOST)
 
+  # ---- iOS app (owns iCloud Drive sync; embeds the watch app) ----------------
   Notes:
     type: application
     platform: iOS
     sources:
+      # Cross-platform code shared with the watch app (WatchConnectivity payload
+      # codec). Deliberately NOT compiled into NotesMac.
+      - path: Shared
       - path: Notes
         excludes:
           - "Resources/Info-*.plist"
@@ -82,6 +110,8 @@ targets:
       - package: IndieSync
       - package: IndieAbout
       - package: IndieBackup
+      # XcodeGen auto-embeds the watchOS app into the iOS app's Watch/ folder.
+      - target: Notes Watch App
     settings:
       base:
         PRODUCT_BUNDLE_IDENTIFIER: dev.rzen.indie.Notes
@@ -95,14 +125,7 @@ targets:
         ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
         ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME: AccentColor
         TARGETED_DEVICE_FAMILY: "1,2"
-    postBuildScripts:
-      - script: '"${SRCROOT}/Scripts/update_build_number.sh"'
-        name: Update Build Info
-        shell: /bin/sh
-        basedOnDependencyAnalysis: false
-        inputFiles:
-          - $(TARGET_BUILD_DIR)/$(INFOPLIST_PATH)
-          - $(DWARF_DSYM_FOLDER_PATH)/$(DWARF_DSYM_FILE_NAME)/Contents/Info.plist
+    postBuildScripts: *updateBuildInfo
 
   NotesMac:
     type: application
@@ -137,11 +160,49 @@ targets:
         MACOSX_DEPLOYMENT_TARGET: "26.0"
         ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
         ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME: AccentColor
-    postBuildScripts:
-      - script: '"${SRCROOT}/Scripts/update_build_number.sh"'
-        name: Update Build Info
-        shell: /bin/sh
-        basedOnDependencyAnalysis: false
-        inputFiles:
-          - $(TARGET_BUILD_DIR)/$(INFOPLIST_PATH)
-          - $(DWARF_DSYM_FOLDER_PATH)/$(DWARF_DSYM_FILE_NAME)/Contents/Info.plist
+    postBuildScripts: *updateBuildInfo
+
+  # ---- watchOS app (no iCloud; recordings transfer to the phone via WC) -------
+  Notes Watch App:
+    type: application
+    platform: watchOS
+    sources:
+      - path: Shared
+      - path: Notes Watch App
+        excludes:
+          - "Resources/Info-*.plist"
+    dependencies:
+      - package: IndieSync
+      - target: Notes Watch Widget
+        embed: true
+    postBuildScripts: *updateBuildInfo
+    settings:
+      base:
+        PRODUCT_BUNDLE_IDENTIFIER: dev.rzen.indie.Notes.watchkitapp
+        PRODUCT_NAME: Contextful
+        PRODUCT_MODULE_NAME: NotesWatchApp
+        INFOPLIST_FILE: "Notes Watch App/Resources/Info-watchOS.plist"
+        GENERATE_INFOPLIST_FILE: false
+        SWIFT_STRICT_CONCURRENCY: complete
+        WATCHOS_DEPLOYMENT_TARGET: "26.0"
+        ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
+        ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME: AccentColor
+        TARGETED_DEVICE_FAMILY: "4"
+
+  # ---- watchOS widget extension (a launcher complication for the watch face) --
+  Notes Watch Widget:
+    type: app-extension
+    platform: watchOS
+    sources:
+      - path: Notes Watch Widget
+        excludes:
+          - "Resources/Info-*.plist"
+    postBuildScripts: *updateBuildInfo
+    settings:
+      base:
+        PRODUCT_BUNDLE_IDENTIFIER: dev.rzen.indie.Notes.watchkitapp.widget
+        INFOPLIST_FILE: "Notes Watch Widget/Resources/Info-WatchWidget.plist"
+        GENERATE_INFOPLIST_FILE: false
+        SWIFT_STRICT_CONCURRENCY: complete
+        WATCHOS_DEPLOYMENT_TARGET: "26.0"
+        TARGETED_DEVICE_FAMILY: "4"