feat: add file paths to codebase mapping output

- Agent prompts now explicitly require file paths in findings
- Templates updated with backtick-formatted path examples
- CONCERNS.md examples show Files: field for every issue
- ARCHITECTURE.md now welcomes file paths as concrete examples
- Makes codebase docs actionable for Claude during planning

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

get-shit-done/templates/codebase/structure.md

@@ -172,21 +172,21 @@ get-shit-done/
 ## Key File Locations
 
 **Entry Points:**
-- bin/install.js: Installation script (npx entry)
+- `bin/install.js` - Installation script (npx entry)
 
 **Configuration:**
-- package.json: Project metadata, dependencies, bin entry
-- .gitignore: Excluded files
+- `package.json` - Project metadata, dependencies, bin entry
+- `.gitignore` - Excluded files
 
 **Core Logic:**
-- bin/install.js: All installation logic (file copying, path replacement)
+- `bin/install.js` - All installation logic (file copying, path replacement)
 
 **Testing:**
-- tests/: Test files (if present)
+- `tests/` - Test files (if present)
 
 **Documentation:**
-- README.md: User-facing installation and usage guide
-- CLAUDE.md: Instructions for Claude Code when working in this repo
+- `README.md` - User-facing installation and usage guide
+- `CLAUDE.md` - Instructions for Claude Code when working in this repo
 
 ## Naming Conventions
 
@@ -206,25 +206,25 @@ get-shit-done/
 ## Where to Add New Code
 
 **New Slash Command:**
-- Primary code: commands/gsd/{command-name}.md
-- Tests: tests/commands/{command-name}.test.js (if testing implemented)
-- Documentation: Update README.md with new command
+- Primary code: `commands/gsd/{command-name}.md`
+- Tests: `tests/commands/{command-name}.test.js` (if testing implemented)
+- Documentation: Update `README.md` with new command
 
 **New Template:**
-- Implementation: get-shit-done/templates/{name}.md
+- Implementation: `get-shit-done/templates/{name}.md`
 - Documentation: Template is self-documenting (includes guidelines)
 
 **New Workflow:**
-- Implementation: get-shit-done/workflows/{name}.md
-- Usage: Reference from command with @~/.claude/get-shit-done/workflows/{name}.md
+- Implementation: `get-shit-done/workflows/{name}.md`
+- Usage: Reference from command with `@~/.claude/get-shit-done/workflows/{name}.md`
 
 **New Reference Document:**
-- Implementation: get-shit-done/references/{name}.md
+- Implementation: `get-shit-done/references/{name}.md`
 - Usage: Reference from commands/workflows as needed
 
 **Utilities:**
-- No utilities yet (install.js is monolithic)
-- If extracted: src/utils/
+- No utilities yet (`install.js` is monolithic)
+- If extracted: `src/utils/`
 
 ## Special Directories