Support multiple Claude Code profiles

[kvnloo]

Addresses #13.

Depends on #12. GitHub cannot use a branch from a fork as the base of another pull request, so this branch targets main and contains only the multi-profile commit. Please merge #12 first, then rebase this pull request before merging.

What changed

• validates and realpath-deduplicates CRIBBLE_CLAUDE_CONFIG_DIRS
• keeps one all-agent baseline scan, then merges only Claude rows from additional --by-agent scans
• fails closed when any configured profile scan fails
• captures the opt-in setting in Linux systemd units without credentials
• documents the generic configuration and adds regression coverage for validation, deduplication, non-Claude exclusion, failure behavior, and service capture

Verification

• RED sabotage: the focused source suite failed 2 of 17 tests before implementation, covering the missing parser and missing extra Claude rows
• focused source and background suites: 24 passed, 0 failed
• npm test on the main-based branch: 117 passed, 0 failed
• git diff --check: passed

No user-specific paths, profile names, usage totals, or conversation content are included.