fix: handle spaces in filepaths for JetBrains autocomplete

[sestinj]

Summary

• Fix parseUri() to handle unencoded file URIs (e.g. file:///C:/src/test1 project/file.py) by falling back to File(path).toURI() when URI() throws on illegal characters
• Add regression test for unencoded spaces in file paths

Test plan

• Existing UriUtilsTest tests continue to pass
• New test unencoded spaces test passes
• Verify JetBrains autocomplete no longer crashes on file paths with spaces

Fixes #10613

🤖 Generated with Claude Code

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Summary by cubic

Fix URI parsing for unencoded file paths with spaces to stop JetBrains autocomplete from crashing. Adds a safe fallback when URI() rejects unencoded paths. Fixes #10613.

• Bug Fixes
  • parseUri: normalize file:// → file:///; if URI() fails on unencoded file:/// paths (e.g., spaces), fall back to File(path).toURI().
  • Added regression test for unencoded spaces; verified existing UriUtils tests continue to pass.

^{Written for commit a974f4b. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 2 files