docs: sync documentation with code changes for v5.1.0

Changes applied:
- Updated version references from 5.0.0 to 5.1.0 (CLAUDE.md, CANONICAL-PATHS.md, setup.sh)
- Added missing projman commands to README.md (/suggest-version, /proposal-status)
- Added missing cmdb-assistant commands to README.md (/cmdb-audit, /cmdb-register, /cmdb-sync)
- Added /proposal-status to projman section in COMMANDS-CHEATSHEET.md
- Added 3 cmdb-assistant commands to COMMANDS-CHEATSHEET.md
- Added /suggest-version documentation to plugins/projman/README.md
- Added 4 missing scripts to CANONICAL-PATHS.md (verify-hooks.sh, setup-venvs.sh, venv-repair.sh, release.sh)

Fixes 14 documentation drift issues identified by /doc-guardian:doc-audit.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/COMMANDS-CHEATSHEET.md

@@ -23,6 +23,7 @@ Quick reference for all commands in the Leo Claude Marketplace.
 | **projman** | `/debug-report` | | X | Run diagnostics and create structured issue in marketplace |
 | **projman** | `/debug-review` | | X | Investigate diagnostic issues and propose fixes with approval gates |
 | **projman** | `/suggest-version` | | X | Analyze CHANGELOG and recommend semantic version bump |
+| **projman** | `/proposal-status` | | X | View proposal and implementation hierarchy with status |
 | **git-flow** | `/commit` | | X | Create commit with auto-generated conventional message |
 | **git-flow** | `/commit-push` | | X | Commit and push to remote in one operation |
 | **git-flow** | `/commit-merge` | | X | Commit current changes, then merge into target branch |
@@ -55,6 +56,9 @@ Quick reference for all commands in the Leo Claude Marketplace.
 | **cmdb-assistant** | `/cmdb-device` | | X | Manage network devices (create, view, update, delete) |
 | **cmdb-assistant** | `/cmdb-ip` | | X | Manage IP addresses and prefixes |
 | **cmdb-assistant** | `/cmdb-site` | | X | Manage sites, locations, racks, and regions |
+| **cmdb-assistant** | `/cmdb-audit` | | X | Data quality analysis (VMs, devices, naming, roles) |
+| **cmdb-assistant** | `/cmdb-register` | | X | Register current machine into NetBox with running apps |
+| **cmdb-assistant** | `/cmdb-sync` | | X | Sync machine state with NetBox (detect drift, update) |
 | **project-hygiene** | *PostToolUse hook* | X | | Removes temp files, warns about unexpected root files |
 | **data-platform** | `/ingest` | | X | Load data from CSV, Parquet, JSON into DataFrame |
 | **data-platform** | `/profile` | | X | Generate data profiling report with statistics |