make CLI argv args reach typed command handlers (T-232)

Parameterized subsystem commands were unreachable from the CLI: the
argv translator emits {positional, flags} but the handlers read named
top-level keys (args['path'], args['id'], ...), and nothing mapped
between them -- so 'clide editor open <path>' returned 'path is
required'. The fix needed no new mechanism: D-74's CommandSchema.normalize
already folds the argv shape into named args by a declared positional
ordering; these commands just never registered a schema.

Adopts it for the navigation/drive surface -- editor.open/activate/read/
save/close, files.read/ls, pane.close/focus/resize/write -- with
non-required positional schemas, so the only effect is positional->named
mapping plus numeric coercion of line/cols/rows. Handlers unchanged;
missing-arg errors unchanged. Edit-mutation verbs, pane.spawn, and git
arg verbs are deferred (noted on the ticket).

Takes effect on app restart (the dispatcher is built once at boot).

Closes T-232 (under T-208 'Give Claude hands').

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

test/daemon/pane_commands_test.dart

@@ -193,6 +193,35 @@ void main() {
       expect(unknown.ok, isFalse);
       expect(unknown.error!.kind, 'not_found');
     });
+
+    // T-232: the CLI argv shape ({positional, flags}) must reach the handlers
+    // via the registered schemas' normalize, incl. numeric coercion.
+    test('CLI positional id binds to pane.focus (T-232)', () async {
+      final spawn = await call('pane.spawn', {
+        'argv': const ['/bin/cat'],
+      });
+      final id = spawn.data['id']! as String;
+      final r = await call('pane.focus', {
+        'positional': [id],
+      });
+      expect(r.ok, isTrue, reason: r.error?.message);
+      expect(r.data['id'], id);
+    });
+
+    test('CLI positional id/cols/rows coerce + bind to pane.resize (T-232)', () async {
+      final spawn = await call('pane.spawn', {
+        'argv': const ['/bin/cat'],
+      });
+      final id = spawn.data['id']! as String;
+      // cols/rows arrive as strings from argv; the schema coerces them to num
+      // so the handler (which reads them as num) doesn't see "required".
+      final r = await call('pane.resize', {
+        'positional': [id, '100', '40'],
+      });
+      expect(r.ok, isTrue, reason: r.error?.message);
+      expect(r.data['cols'], 100);
+      expect(r.data['rows'], 40);
+    });
   });
 
   // T-219 / D-83: `pane list` reflects the GUI tabs the user sees, merged