fix(ui): shorten install/uninstall/update timeouts for async RPCs

With the backend flipped to async-spawn, install/uninstall/update return
immediately with a { status, package_id } envelope. Client timeouts of
45m/11m were a leftover from synchronous handlers and masked real RPC
failures.

Drop all install/uninstall/update RPC timeouts to 15s. Progress and
terminal state still arrive through the live state stream — the RPC
only needs to confirm the spawn was accepted.

Return-type annotations updated in rpc-client.ts and stores/server.ts.
Five direct rpcClient.call sites across Marketplace.vue, Discover.vue,
and MarketplaceAppDetails.vue updated with the shorter timeout.

neode-ui/src/api/rpc-client.ts

@@ -521,23 +521,30 @@ class RPCClient {
     })
   }
 
-  async installPackage(id: string, marketplaceUrl: string, version: string): Promise<string> {
+  async installPackage(
+    id: string,
+    marketplaceUrl: string,
+    version: string,
+  ): Promise<{ status: string; package_id: string }> {
+    // Backend is async — returns { status: 'installing' } in <1s after
+    // flipping state and spawning the pull/install pipeline. Progress is
+    // streamed via WebSocket (install_progress field on the package entry).
     return this.call({
       method: 'package.install',
       params: { id, 'marketplace-url': marketplaceUrl, version },
-      // 45 min — IndeedHub is 6 images and gitea raw-file throughput is
-      // ~70 KB/s per image; 15 min was short enough to kill the install
-      // mid-pull and land the user on a "didn't work" screen while the
-      // backend kept working in the background.
-      timeout: 2700000,
+      timeout: 15000,
     })
   }
 
-  async uninstallPackage(id: string): Promise<void> {
+  async uninstallPackage(id: string): Promise<{ status: string; package_id: string }> {
+    // Backend is async — returns { status: 'removing' } immediately after
+    // flipping state. Graceful stop (up to 600s for bitcoin) and data wipe
+    // (up to minutes for large chainstate) run in a background task.
+    // Progress shown via uninstall_stage field on the package entry.
     return this.call({
       method: 'package.uninstall',
       params: { id },
-      timeout: 660000, // Bitcoin Knots needs up to 600s for UTXO flush
+      timeout: 15000,
     })
   }
 
@@ -545,7 +552,7 @@ class RPCClient {
     return this.call({
       method: 'package.start',
       params: { id },
-      timeout: 60000,
+      timeout: 15000,
     })
   }
 
@@ -553,7 +560,7 @@ class RPCClient {
     return this.call({
       method: 'package.stop',
       params: { id },
-      timeout: 120000,
+      timeout: 15000,
     })
   }
 
@@ -561,15 +568,18 @@ class RPCClient {
     return this.call({
       method: 'package.restart',
       params: { id },
-      timeout: 120000,
+      timeout: 15000,
     })
   }
 
-  async updatePackage(id: string): Promise<{ status: string }> {
+  async updatePackage(id: string): Promise<{ status: string; package_id: string }> {
+    // Backend is async — returns { status: 'updating' } immediately after
+    // flipping state. Pull / stop / recreate / verify runs in background,
+    // with rollback-on-failure.
     return this.call({
       method: 'package.update',
       params: { id },
-      timeout: 660000, // Bitcoin Knots needs up to 600s for graceful shutdown
+      timeout: 15000,
     })
   }