Add OpenCode provider integration and strict model selection

docs/adapters/overview.md

@@ -20,6 +20,8 @@ When a heartbeat fires, Paperclip:
 |---------|----------|-------------|
 | [Claude Local](/adapters/claude-local) | `claude_local` | Runs Claude Code CLI locally |
 | [Codex Local](/adapters/codex-local) | `codex_local` | Runs OpenAI Codex CLI locally |
+| OpenCode Local | `opencode_local` | Runs OpenCode CLI locally (multi-provider `provider/model`) |
+| OpenClaw | `openclaw` | Sends wake payloads to an OpenClaw webhook |
 | [Process](/adapters/process) | `process` | Executes arbitrary shell commands |
 | [HTTP](/adapters/http) | `http` | Sends webhooks to external agents |
 
@@ -52,7 +54,7 @@ Three registries consume these modules:
 
 ## Choosing an Adapter
 
-- **Need a coding agent?** Use `claude_local` or `codex_local`
+- **Need a coding agent?** Use `claude_local`, `codex_local`, or `opencode_local`
 - **Need to run a script or command?** Use `process`
 - **Need to call an external service?** Use `http`
 - **Need something custom?** [Create your own adapter](/adapters/creating-an-adapter)

docs/api/agents.md

@@ -123,6 +123,18 @@ GET /api/companies/{companyId}/org
 
 Returns the full organizational tree for the company.
 
+## List Adapter Models
+
+```
+GET /api/companies/{companyId}/adapters/{adapterType}/models
+```
+
+Returns selectable models for an adapter type.
+
+- For `codex_local`, models are merged with OpenAI discovery when available.
+- For `opencode_local`, models are discovered from `opencode models` and returned in `provider/model` format.
+- `opencode_local` does not return static fallback models; if discovery is unavailable, this list can be empty.
+
 ## Config Revisions
 
 ```

docs/guides/board-operator/managing-agents.md

@@ -27,6 +27,14 @@ Create agents from the Agents page. Each agent requires:
 - **Adapter config** — runtime-specific settings (working directory, model, prompt, etc.)
 - **Capabilities** — short description of what this agent does
 
+Common adapter choices:
+- `claude_local` / `codex_local` / `opencode_local` for local coding agents
+- `openclaw` / `http` for webhook-based external agents
+- `process` for generic local command execution
+
+For `opencode_local`, configure an explicit `adapterConfig.model` (`provider/model`).
+Paperclip validates the selected model against live `opencode models` output.
+
 ## Agent Hiring via Governance
 
 Agents can request to hire subordinates. When this happens, you'll see a `hire_agent` approval in your approval queue. Review the proposed agent config and approve or reject.