rdmbair15m5-changelog-20260823-0149-fleet-statusline-sync

Summary

Synchronized statusline configuration across rdmbair15m5 to match the canonical fleet standard on rdmsm4x:

1. Updated ~/.claude/canonical/statusline.sh and ~/.claude/statusline.sh to match SHA-256 86252490851c98a46cf32951a73586ad59b75b3bd68f771a3022344141d46bde from rdmsm4x.
2. Verified byte-identical statusline checksums across all 5 hosts (rdmsm4x, rdmbair15m5, rdmbair13m5, rdmpw3265m, rdmpw3275m).
3. Tested live execution of both Claude Code and Antigravity CLI statusline scripts with zero errors.

Scope & Verification

• Checksums verified across fleet hosts.
• Permissions set to mode 555.