fix: Await async main() in hooks for Windows compatibility

[joostliebregts]

Summary

On Windows, Bun exits immediately without waiting for pending promises. When hooks have async main() functions called without await, the script exits before main() completes, causing hooks to produce no output.

Changes

Changed main(); to await main(); in all 4 hooks:

• initialize-session.ts
• load-core-context.ts
• security-validator.ts
• update-tab-titles.ts

Testing

• Tested on macOS: Works as before
• Tested on Windows: Hooks now produce output correctly

Root Cause

async function main() {
  // async operations...
}

main();  // BUG: Script exits before promise resolves on Windows

Fix:

await main();  // Ensures async operations complete before exit

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🤖 Discovered while setting up PAI cross-platform (Mac + Windows)