Add dart parser

[mahaat]

Add dart language to the code base index. Needs to update tree-sitter-wasms to get the new dart tree sitter web assembly.

Some proof of works

Closes #8662

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Important

Add Dart language support with tree-sitter parser, queries, and tests.

• Behavior:
  • Adds Dart language support to the codebase by updating tree-sitter-wasms to ^0.1.13 in package.json.
  • Integrates Dart parser in languageParser.ts and registers Dart extension in index.ts.
• Queries:
  • Adds dartQuery in queries/dart.ts to capture Dart language constructs like classes, methods, functions, mixins, extensions, enums, and type aliases.
• Tests:
  • Adds parseSourceCodeDefinitions.dart.spec.ts to test Dart parsing, covering class definitions, method signatures, mixins, extensions, enums, type aliases, and more.

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[roomote]

Rooviewer   See task on Roo Cloud

This PR adds Dart language support to the tree-sitter integration for codebase indexing. The implementation is solid with all 17 tests passing. All previously identified issues have been resolved.

• dart.ts:73-80 - Tree-sitter query pattern with duplicate value: field will never match

Previous reviews

• 52c2574: Review #1

_{Mention @roomote in a comment to request specific changes to this pull request or fix all unresolved issues.}

[roomote]

This pattern specifies the value: field twice with incompatible node types (identifier on line 75 and selector on line 76). In tree-sitter queries, when the same field is specified multiple times in a pattern, all constraints must match the same node simultaneously. Since a node cannot be both an identifier and a selector, this pattern will never match anything. This is a minor issue since it only affects reference capture (not definition capture), and the primary purpose of the parser works correctly as shown by the passing tests.

_{Fix it with Roo Code or mention @roomote and request a fix.}