feat: add target repo examples and file layout guidance

examples/node-project/ai/task-templates.md

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+# Task Templates
+
+## Bugfix
+Goal: fix a specific bug with minimal API change.
+
+Required flow:
+1. Read relevant implementation and tests
+2. Summarize likely root cause briefly
+3. Implement the smallest safe fix
+4. Run targeted tests, then broader checks if needed
+5. Report changed files and residual risks
+
+## Feature
+Goal: add a small feature without broad refactors.
+
+Required flow:
+1. Inspect related modules and interfaces
+2. Preserve public API unless the task says otherwise
+3. Add tests for new behavior
+4. Run lint, typecheck, and tests