chore: reuse hooks by building for all plugins

[JasonYeMSFT (JasonYeMSFT)]

Description

Make hooks a plugin build artifact so they can be shared by all plugins without duplicating code.

Checklist

• Tests pass locally (cd tests && npm test)
• Title has one of the prefixes: fix:, feat:, feature:, chore:, misc:, test:, eval:
• If modifying skill descriptions: verified routing correctness with integration tests (In tests/, npm run test:integration -- <skill> or npm run test:vally -- --skill <skill>)

Related Issues

[Copilot]

Pull request overview

This PR introduces a shared hooks build artifact so telemetry hook logic/config can be reused across plugin builds without duplicating hook files inside each plugin directory.

Changes:

• Add cross-client telemetry hook implementations (Bash + PowerShell) that parse PostToolUse payloads and emit telemetry via @azure/mcp.
• Add hook configuration files for Copilot/Claude/Cursor hook formats under a shared hooks/ directory.
• Update the gulp build to copy the shared hooks/ directory into each plugin’s output/<plugin>/hooks folder during build.

Show a summary per file

File	Description
hooks/scripts/track-telemetry.sh	Adds Bash telemetry hook implementation (parses tool events, emits MCP telemetry).
hooks/scripts/track-telemetry.ps1	Adds PowerShell telemetry hook implementation with equivalent behavior to the Bash script.
hooks/hooks.json	Adds a hooks config file for PostToolUse with OS/shell-specific command entries.
hooks/cursor-hooks.json	Adds Cursor hook config to run the telemetry script after tool use.
hooks/claude-hooks.json	Adds Claude Code hook config to run the telemetry script after tool use.
gulpfile.ts	Copies the shared hooks/ directory into each built plugin output so hooks ship with all plugins.

Review details

• Files reviewed: 1/6 changed files
• Comments generated: 0
• Review effort level: Low