rename: the apps say Inkwell — web, desktop, Android and server strings

ThoughtSync is renamed Inkwell ("Fabled Inkwell" in full; Scribe note 5071).
This is step 1 of milestone 481: every string a person reads in the running
apps. Identities installed clients depend on are deliberately untouched — the
Tauri productName (it derives the .deb Package: field), identifier and binary
name, applicationId, X-ThoughtSync-* headers, the export's app marker, env vars,
module and crate names.

- web: title, PWA manifest (name "Fabled Inkwell", short_name "Inkwell"),
  offline page, icon labels, build labels, prompts, notification title
- server: site_name default, import error, link-preview User-Agent
- 0030: a stored site_name of exactly the old default follows the rename. The
  Settings page saves every key, so most servers hold "ThoughtSync" without an
  admin ever having chosen it; a name they typed is left alone
- desktop: window title, default device name, local-mode site name, log line
- android: app_name and the strings that name the app
- core: probe and compatibility messages

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

frontend/src/views/AccountView.vue

@@ -128,7 +128,7 @@ onMounted(() => {
     </header>
 
     <p class="mb-6 max-w-xl text-sm text-neutral-500 dark:text-neutral-400">
-      Link the ThoughtSync desktop or mobile app to sync your notes. Create a device token here, then
+      Link the Inkwell desktop or mobile app to sync your notes. Create a device token here, then
       paste it into the app when it asks to connect. You can revoke a device at any time.
     </p>
 
@@ -142,8 +142,8 @@ onMounted(() => {
         <p class="mt-0.5 text-xs text-neutral-400">
           {{
             desktopStatus.is_integrated
-              ? "ThoughtSync is in your applications menu."
-              : "Add ThoughtSync to your applications menu to launch it like an installed app."
+              ? "Inkwell is in your applications menu."
+              : "Add Inkwell to your applications menu to launch it like an installed app."
           }}
         </p>
       </div>

frontend/src/views/BoardView.vue

@@ -198,7 +198,7 @@ const emptyState = computed(() => {
   if (startState.value)
     return {
       title: "Your notes live on this device",
-      subtitle: "ThoughtSync works fully offline — no account, nothing to sign in to.",
+      subtitle: "Inkwell works fully offline — no account, nothing to sign in to.",
     };
   return { title: "No notes yet", subtitle: "Your captured thoughts will show up here." };
 });

frontend/src/views/LoginView.vue

@@ -96,7 +96,7 @@ async function submit() {
            costs nothing that was not already public (#3181). -->
       <p
         class="mt-8 select-all text-center text-[11px] text-neutral-400 dark:text-neutral-500"
-        :title="`ThoughtSync server build ${config.version || 'unknown'}`"
+        :title="`Inkwell server build ${config.version || 'unknown'}`"
       >
         {{ config.version || "unknown" }}
       </p>

frontend/src/views/RemindersView.vue

@@ -38,7 +38,7 @@ onMounted(load);
       <span v-else-if="reminders.osEnabled" class="text-xs text-neutral-400">Notifications on ✓</span>
     </div>
     <p class="mb-5 text-xs text-neutral-400">
-      Due reminders pop up while ThoughtSync is open. Background alerts arrive with the desktop &amp; mobile apps.
+      Due reminders pop up while Inkwell is open. Background alerts arrive with the desktop &amp; mobile apps.
     </p>
 
     <AsyncState :loading="loading" :error="error || undefined" error-title="Couldn't load reminders" @retry="load">

frontend/src/views/SyncView.vue

@@ -69,8 +69,8 @@ function describe(c: Compatibility): string {
 }
 
 // --- App updates (M10.9). Independent of sync: an unlinked, server-less install
-// still updates itself, which is why the feed is the release host and not a
-// ThoughtSync server. ---
+// still updates itself, which is why the feed is the release host and not an
+// Inkwell server. ---
 const channel = ref<UpdateChannel>("stable");
 const update = ref<UpdateStatus | null>(null);
 const checking = ref(false);
@@ -374,8 +374,8 @@ onMounted(refresh);
           Working offline on this device
         </p>
         <p class="mt-1 text-sm text-neutral-500 dark:text-neutral-400">
-          Everything works without a server — your notes are stored on this machine. Connect a
-          ThoughtSync server if you want them to reach your other devices.
+          Everything works without a server — your notes are stored on this machine. Connect an
+          Inkwell server if you want them to reach your other devices.
         </p>
       </section>
 
@@ -410,7 +410,7 @@ onMounted(refresh);
           "
         >
           <p class="font-medium text-neutral-800 dark:text-neutral-100">
-            {{ probe.server.site_name || "ThoughtSync server" }}
+            {{ probe.server.site_name || "Inkwell server" }}
             <span v-if="probe.server.version" class="text-xs font-normal text-neutral-400">
               v{{ probe.server.version }}
             </span>