⚡ Bolt: [performance improvement] Parallelize adapter detection in init

[Kaos599]

💡 What: Refactors the sequential for...of loop awaiting adapter.detect() in src/commands/init.ts to use Promise.all with Object.entries(adapters).map.
🎯 Why: The initialization command sequentially executed I/O operations (file system checks to see if an adapter's configuration exists) which introduced significant blocking overhead to startup.
📊 Impact: Drastically reduces the time spent on the "Detecting clients" stage when the init command runs by executing the 9 current adapter detection checks concurrently.
🔬 Measurement: Validated locally using a performance test mimicking an artificial 300ms delay per adapter; execution time fell from ~2700ms down to ~300ms. Tested with bun run test (and pnpm test) to ensure functionality and correctness are strictly preserved.

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PR created automatically by Jules for task 14436461350069698733 started by @Kaos599

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