feat(cli): add self-update command and cargo-binstall support

.claude-plugin/marketplace.json

@@ -10,7 +10,7 @@
     {
       "name": "govctl",
       "description": "Governed workflow skills, reviewer agents, and enforcement hooks for govctl",
-      "version": "0.8.2",
+      "version": "0.8.3",
       "source": "./.claude",
       "author": {
         "name": "govctl-org"

.claude/.claude-plugin/plugin.json

@@ -1,5 +1,5 @@
 {
   "name": "govctl",
-  "version": "0.8.2",
+  "version": "0.8.3",
   "description": "Governed workflow skills, reviewer agents, and enforcement hooks for govctl"
 }

.claude/skills/commit/SKILL.md

@@ -24,7 +24,9 @@ Commit changes using the project's version control system, with govctl-aware che
 
 ### Step 1: Detect VCS
 
-Run `jj root` first. If succeeds, use **Jujutsu**. If fails, run `git rev-parse --git-dir`. If succeeds, use **Git**. If both fail, stop and inform user.
+Run `jj root` first. If it succeeds, use **Jujutsu** — do NOT also check git. A jj-git colocated repo has both `.jj/` and `.git/`, so checking git would also succeed and cause you to use the wrong VCS. Only if `jj root` fails, run `git rev-parse --git-dir`. If that succeeds, use **Git**. If both fail, stop and inform user.
+
+**CRITICAL:** Do NOT run `jj root` and `git rev-parse` in parallel. Run `jj root` first, and only proceed to git detection if jj is not found.
 
 ### Step 2: Govctl Pre-Commit Checks
 

CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.8.3] - 2026-04-13
+
+### Added
+
+- Implement govctl self-update command with --check flag (WI-2026-04-13-001)
+- Add cargo-binstall metadata to Cargo.toml (WI-2026-04-13-001)
+
 ## [0.8.2] - 2026-04-10
 
 ### Added