⚡ Bolt: batch config loading during bulk worktree creation

[Donach]

💡 What: Refactored applyWorktreeCreateDefaults in apps/agor-daemon/src/services/worktrees.ts to accept the AgorConfig as an argument instead of calling loadConfig() internally. Updated the create method to load the config once and pass it iteratively to each item during bulk insertions. Also updated the .jules/bolt.md journal.
🎯 Why: When bulk creating worktrees, loadConfig() was being awaited inside a .map() loop. Because loadConfig() reads and parses the YAML configuration file from disk on every invocation, this resulted in severe O(N) disk I/O performance bottlenecks proportional to the number of worktrees being created.
📊 Impact: Reduces disk reads and parses from N to 1 during bulk worktree creations, significantly speeding up the endpoint and reducing CPU/IO usage.
🔬 Measurement: Create an array of 50-100 worktrees simultaneously via the REST or WS API. The response time will be noticeably faster since it drops 49-99 synchronous disk reads. Verified via passing test suite.

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PR created automatically by Jules for task 8599988557426554309 started by @Donach

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