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

src/types/opencode.ts

@@ -0,0 +1,54 @@
+export type OpenCodePermission = "allow" | "ask" | "deny"
+
+export type OpenCodeConfig = {
+  $schema?: string
+  model?: string
+  default_agent?: string
+  tools?: Record<string, boolean>
+  permission?: Record<string, OpenCodePermission | Record<string, OpenCodePermission>>
+  agent?: Record<string, OpenCodeAgentConfig>
+  command?: Record<string, OpenCodeCommandConfig>
+  mcp?: Record<string, OpenCodeMcpServer>
+}
+
+export type OpenCodeAgentConfig = {
+  description?: string
+  mode?: "primary" | "subagent"
+  model?: string
+  temperature?: number
+  tools?: Record<string, boolean>
+  permission?: Record<string, OpenCodePermission>
+}
+
+export type OpenCodeCommandConfig = {
+  description?: string
+  model?: string
+  agent?: string
+  template: string
+}
+
+export type OpenCodeMcpServer = {
+  type: "local" | "remote"
+  command?: string[]
+  url?: string
+  environment?: Record<string, string>
+  headers?: Record<string, string>
+  enabled?: boolean
+}
+
+export type OpenCodeAgentFile = {
+  name: string
+  content: string
+}
+
+export type OpenCodePluginFile = {
+  name: string
+  content: string
+}
+
+export type OpenCodeBundle = {
+  config: OpenCodeConfig
+  agents: OpenCodeAgentFile[]
+  plugins: OpenCodePluginFile[]
+  skillDirs: { sourceDir: string; name: string }[]
+}