feat: add OpenCode/Codex outputs and update changelog (#104)

* Add OpenCode converter coverage and specs

* Add Codex target support and spec docs

* Generate Codex command skills and refresh spec docs

* Add global Codex install path

* fix: harden plugin path loading and codex descriptions

* feat: ensure codex agents block on convert/install

* docs: clarify target branch usage for review

* chore: prep npm package metadata and release notes

* docs: mention opencode and codex in changelog

* docs: update CLI usage and remove stale todos

* feat: install from GitHub with global outputs

tests/fixtures/sample-plugin/commands/command-one.md

@@ -0,0 +1,7 @@
+---
+name: workflows:review
+description: Run a multi-agent review workflow
+allowed-tools: Read, Write, Edit, Bash(ls:*), Bash(git:*), Grep, Glob, List, Patch, Task
+---
+
+Workflows review body.

tests/fixtures/sample-plugin/commands/model-command.md

@@ -0,0 +1,8 @@
+---
+name: workflows:work
+description: Execute planned tasks step by step
+model: gpt-4o
+allowed-tools: WebFetch
+---
+
+Workflows work body.

tests/fixtures/sample-plugin/commands/nested/command-two.md

@@ -0,0 +1,9 @@
+---
+name: plan_review
+description: Review a plan with multiple agents
+allowed-tools:
+  - Read
+  - Edit
+---
+
+Plan review body.

tests/fixtures/sample-plugin/commands/pattern-command.md

@@ -0,0 +1,7 @@
+---
+name: report-bug
+description: Report a bug with structured context
+allowed-tools: Read(.env), Bash(git:*)
+---
+
+Report bug body.

tests/fixtures/sample-plugin/commands/skill-command.md

@@ -0,0 +1,7 @@
+---
+name: create-agent-skill
+description: Create or edit a Claude Code skill
+allowed-tools: Skill(create-agent-skills)
+---
+
+Create agent skill body.

tests/fixtures/sample-plugin/commands/todo-command.md

@@ -0,0 +1,7 @@
+---
+name: workflows:plan
+description: Create a structured plan from requirements
+allowed-tools: Question, TodoWrite, TodoRead
+---
+
+Workflows plan body.