fix(repo): remove invalid tracked worktree gitlink

[OgeonX-Ai]

Summary

Removes a malformed tracked gitlink that cannot be initialized and was left behind by an old worktree operation.

Changes

• Remove PersonalRepoworktreesautogen-phase-28, a gitlink with no matching .gitmodules entry
• Preserve the underlying Phase 28 work because its commit is already contained by main

Why

The invalid gitlink makes a clean checkout report a missing path and cannot be restored with git submodule update because no URL exists.

Validation

• Confirmed the tracked entry is mode 160000
• Confirmed .gitmodules has no entry for the path
• Confirmed the removed worktree commit is contained by origin/main
• Ran git diff --cached --check before commit

Risks

Low. The path is not referenced by source and cannot be initialized as a submodule.

Related

Workspace hygiene cleanup.

Reviewer notes

Review the single gitlink deletion and verify no submodule entry is expected.

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