rename: Android is Inkwell — package, applicationId, uniffi class, assets

Step 4 of milestone 481 (Scribe note 5071: a full rename).

- namespace and applicationId com.fabledsword.inkwell; the Kotlin package moves
  with them, and ktlint re-sorted the imports the rename reordered (checked
  locally with CI's ktlint 1.4.0 and detekt 1.23.7, both clean)
- uniffi: class Inkwell in com.fabledsword.inkwell.core, InkwellApplication,
  InkwellTheme, Theme.Inkwell, log tags, prefs and work names, client agent
  inkwell-android
- the lane publishes inkwell.apk / inkwell-android.json; fetch-clients,
  guard-forward, publish-release and write-manifest read the same names

A new applicationId is a new app. The old ThoughtSync app keeps its own store
and stays installed beside it. Notes cross over by syncing, and the old app is
then removed by hand.

Kept: the signing keyAlias is still "thoughtsync". It names the key inside the
existing keystore, and the key, and so the certificate, are unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packaging/fetch-clients.sh

@@ -88,8 +88,8 @@ echo "==> Collecting the $channel clients"
 # Its sidecar is published whole by the Android lane — an APK keeps its version in
 # a binary AXML manifest, so the values are recorded where they were already known.
 # Copied verbatim rather than rebuilt here.
-if fetch "$BASE/thoughtsync.apk" "$dest/inkwell.apk" &&
-   fetch "$BASE/thoughtsync-android.json" "$dest/inkwell-android.json"; then
+if fetch "$BASE/inkwell.apk" "$dest/inkwell.apk" &&
+   fetch "$BASE/inkwell-android.json" "$dest/inkwell-android.json"; then
   echo "    android      $(field "$dest/inkwell-android.json" version_name)"
 else
   # Both or neither. Half a pair is worse than none: the server would read a

packaging/guard-forward.sh

@@ -110,7 +110,7 @@ published_for() {
         | sed -E 's/.*"([^"]+)"$/\1/'; } || true
       ;;
     android)
-      { fetch "$SERVER/$REPO/releases/download/$_tag/thoughtsync-android.json" \
+      { fetch "$SERVER/$REPO/releases/download/$_tag/inkwell-android.json" \
         | grep -oE '"version_code"[[:space:]]*:[[:space:]]*[0-9]+' | head -1 \
         | grep -oE '[0-9]+$'; } || true
       ;;
@@ -126,7 +126,7 @@ published_name() {
   case "$1" in
     desktop) published_for desktop "$2" ;;
     android)
-      { fetch "$SERVER/$REPO/releases/download/$_tag/thoughtsync-android.json" \
+      { fetch "$SERVER/$REPO/releases/download/$_tag/inkwell-android.json" \
         | grep -oE '"version_name"[[:space:]]*:[[:space:]]*"[^"]+"' | head -1 \
         | sed -E 's/.*"([^"]+)"$/\1/'; } || true
       ;;