chore: bump @7n/tauri-components to 0.13.9

Picks up today's AgentDialog fixes: model-label per turn, tier-select
hidden when the agent has none, mid-conversation agent switch (chat
continuity + context handoff), acp_spawn_agent/acp_prompt race fix,
and the identity-confusion fix in the handoff context.

Author: vitaliytv

app/package.json

@@ -18,7 +18,7 @@
     "test:all": "bun run test && bun run test:rust"
   },
   "dependencies": {
-    "@7n/tauri-components": "^0.12.0",
+    "@7n/tauri-components": "^0.13.9",
     "@quasar/extras": "^2.0.2",
     "@tauri-apps/api": "^2.11.1",
     "@tauri-apps/plugin-dialog": "^2.7.2",

app/src-tauri/Cargo.lock

@@ -35,7 +35,7 @@ tauri-plugin-dialog = "2"
 # mlmail/myshare/mikrotik apps use. Pinned to a specific rev (not floating) so
 # a future push to the package repo can't silently change this app's Rust
 # surface underneath it.
-tauri-plugin-agent = { git = "https://github.com/nitra/tauri-components", rev = "ef4b3419e5507f4212f07bf61b3b081886459656" }
+tauri-plugin-agent = { git = "https://github.com/nitra/tauri-components", rev = "87f87e74ab56358746e75af8904abec96f4648d1" }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 uuid = { version = "1", features = ["v4"] }