feat(torrent): add standalone properties windows

- add caller-bound native properties bridge and lifecycle guards

- split Network settings into accessible secondary tabs

- add tabbed Torrent and generic Properties surfaces

- harden runtime validation and ignore the implementation plan

src-tauri/capabilities/properties.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "properties-window",
+  "description": "Minimal capability for Firelink Properties windows",
+  "windows": ["properties-*"],
+  "permissions": [
+    "core:window:allow-close",
+    "core:window:allow-set-title",
+    "core:event:allow-listen",
+    "core:event:allow-unlisten",
+    "dialog:default",
+    "clipboard-manager:allow-write-text",
+    "log:default"
+  ]
+}