refactor: rename packages → intercept-fetch and session-inspector (issues 006, 007)
Relax .claude/rules/naming.md (drop the mandatory `secure-` prefix), then rename:
- secure-fetch → intercept-fetch (package, MCP server, tools intercept_fetch*,
pipeline interceptFetch/intercept-fetch.ts, types InterceptFetch*, env
INTERCEPT_FETCH_*, runtime files intercept-fetch-{config,audit,approvals})
- secure-inspect → session-inspector (package, bin, UI header, provenance, docs)
Preserved: the sibling repo path ~/code/secure-fetch. All suites pass (38+92+40+9).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>