[FEATURE] Add clickable code block links to jump directly to source location in VSCode

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

When Claude Code displays code blocks from my repository, I cannot directly navigate to that code's location in VSCode. I have to manually search for the file and scroll to find the relevant lines. This breaks flow when reviewing suggestions or debugging -- I see the code in Claude Code but need multiple steps to locate it in my actual codebase.

Proposed Solution

Add clickable elements (header button or overlay) on code blocks that:

1. Display the file path and line range (e.g., src/parser.py:45-67)
2. When clicked, open VSCode to that exact file and highlight the line range
3. Use VSCode's URI handler: vscode://file/{absolute_path}:{line}:{column}
4. Optional: Show hover tooltip with full path before clicking

Alternative Solutions

Currently using:

• Manual file search in VSCode
• Copy-pasting file names from Claude Code output
• Using Ctrl+Shift+F to search for code snippets
• Keeping multiple VSCode tabs open preemptively

None provide the instant navigation/strong connection to my actual codebase.

Priority

Low - Nice to have

Feature Category

Developer tools/SDK

Use Case Example

1. Ask Claude Code to analyze a function's performance
2. Claude displays the function code block from src/utils/optimizer.py:120-145
3. Click the code block header link
4. VSCode opens, jumps to optimizer.py line 120, highlights through line 145
5. Make edits based on Claude's suggestions without manual navigation
6. Return to Claude Code for next task

This would reduce a 15-30 second navigation to a single click. More importantly (for me anyway), it helps the user connect the code from CC with their actual codebase.

Additional Context

Similar implementations:

• GitHub PR reviews link to code locations