chore: sync root pnpm-lock.yaml with new workspace dep

CI runs `pnpm install` from the repo root using the root lockfile with
the default frozen-lockfile behaviour. The previous commits ran install
only inside understand-anything-plugin/ so the new
@understand-anything/tree-sitter-dart-wasm workspace dependency was
recorded in understand-anything-plugin/pnpm-lock.yaml but missed at
the repo root — CI would have stopped at install.

Flagged by @chatgpt-codex-connector on #435.

pnpm-lock.yaml

@@ -60,6 +60,9 @@ importers:
       '@tree-sitter-grammars/tree-sitter-kotlin':
         specifier: 1.1.0
         version: 1.1.0
+      '@understand-anything/tree-sitter-dart-wasm':
+        specifier: workspace:*
+        version: link:../tree-sitter-dart-wasm
       fuse.js:
         specifier: ^7.1.0
         version: 7.1.0
@@ -198,6 +201,8 @@ importers:
         specifier: ^3.1.0
         version: 3.2.4(@types/debug@4.1.12)(@types/node@25.5.0)(jiti@2.6.1)(lightningcss@1.32.0)(yaml@2.8.3)
 
+  understand-anything-plugin/packages/tree-sitter-dart-wasm: {}
+
 packages:
 
   '@ampproject/remapping@2.3.0':