docs(P04): README refresh + namespace.md v0.9 layout update
P04 — README and namespace.md refresh (REQ-095, REQ-096).
README.md (REQ-095):
- Status line updated (v0.9 complete, v0.10 in progress).
- Install --version example updated to v0.9.1 (current).
- Added --check dry-run example.
- Update-in-place example updated to v0.8.15 -> v0.9.1.
- Subcommand table expanded to all 22 commands with Since column and
deprecation markers (daemon, cert, status marked deprecated).
- Development section complete (verify-reqs, security-scan, test-race,
changelog, release).
- New Documentation section linking all 7 docs/*.md.
- New Examples section linking examples/full-stack/.
docs/namespace.md (REQ-096):
- Replaced v0.8 flat path table with v0.9 multi-namespace layout
(cluster/, _defaults/, per-ns db/jobs/alloc/ns.md, orca_cache.db).
- Full path reference table from internal/paths/paths.go.
- Namespace root resolution (ORCA_HOME/--system/~/.orca).
- orca ns subcommand cross-link to docs/cli.md.
- Namespace inheritance (_defaults implicit root, D-159/D-185/D-187).
- v0.8 flat layout flagged deprecated with callout box.
All README links verified to resolve. make verify-reqs: 98 consistent.
---ci---
project: orca
phase: 4
milestone: v0.10
status: execute
---/ci---
Jon Chery
e9686f4ab0