feat: add hooks example with lint-check post-write hook

[danielmeppiel]

Adds a hooks/ directory with a sample PostToolUse hook that triggers after file-write tools (write_to_file, create_file, edit_file). Includes a bundled lint-changed.sh script as a realistic example.

[Copilot]

Pull request overview

Adds a hooks/ directory to the APM sample package, providing an example PostToolUse hook that runs after file-write tools and calls a bundled script to emit a “lint reminder” message.

Changes:

• Added hooks/hooks.json defining a PostToolUse hook matcher for file-write tools.
• Added hooks/scripts/lint-changed.sh, a sample post-write hook script that reports the modified file path.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
hooks/scripts/lint-changed.sh	Adds a minimal post-write hook script that reads the tool input path and prints a reminder message.
hooks/hooks.json	Registers a PostToolUse command hook to invoke the bundled script after write-related tools.

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