feat(provider-opencode-go): add OpenCode Go Chat Completions provider worker

README.md

@@ -71,6 +71,7 @@ npx skills add iii-hq/iii --all
 | [`provider-github-copilot`](provider-github-copilot/) | Rust | GitHub Copilot subscription provider behind `llm-router` — sign in with GitHub once (device-flow login surface, editor-credential import) and the models the plan grants land in the picker; `provider::github-copilot::stream` with worker-owned bearer exchange/refresh and a fully live `copilot/`-prefixed catalog. |
 | [`provider-llamacpp`](provider-llamacpp/) | Rust | llama.cpp server (`llama-server`) Chat Completions provider behind `llm-router` — `provider::llamacpp::stream` with optional (no-`--api-key`) auth, real json_schema-constrained output, and live model discovery via `/v1/models` + `/props`. |
 | [`provider-openai`](provider-openai/) | Rust | OpenAI Chat Completions provider behind `llm-router` — `provider::openai::stream` with reasoning support and live chat-model discovery, plus `provider::openai::embed` for batch embeddings (OpenAI-compatible endpoints included). |
+| [`provider-opencode-go`](provider-opencode-go/) | Rust | OpenCode Go Chat Completions provider behind `llm-router` — `provider::opencode_go::stream`, live models.dev-enriched catalog via `refresh_models` |
 | [`provider-openrouter`](provider-openrouter/) | Rust | OpenRouter Chat Completions provider behind `llm-router` — one API key in front of every major vendor; `provider::openrouter::stream` with unified reasoning-effort support, billed-cost usage accounting, and a fully live catalog (context/pricing/capabilities from `GET /api/v1/models`, ids prefixed `openrouter/`). |
 | [`provider-xai`](provider-xai/) | Rust | xAI (Grok) Chat Completions provider behind `llm-router` — `provider::xai::stream` with grok reasoning support and live model discovery against `api.x.ai`. |
 | [`provider-zai`](provider-zai/) | Rust | Z.AI (GLM) Chat Completions provider behind `llm-router` — `provider::zai::stream` with GLM thinking/effort support and a curated catalog against `api.z.ai` (no upstream model listing). |

llm-router/README.md

@@ -222,6 +222,8 @@ The first real provider implementing this protocol is
 implementation alongside the scripted provider in the integration tests.
 [`provider-openai/`](https://github.com/iii-hq/workers/tree/main/provider-openai) follows the same structure for the
 OpenAI Chat Completions API (native structured output, reasoning_effort).
+[`provider-opencode-go/`](https://github.com/iii-hq/workers/tree/main/provider-opencode-go) follows the same structure for the
+OpenCode Go Chat Completions API (curated model metadata, reasoning_effort).
 
 ## Local development & testing
 

provider-opencode-go/.gitignore

@@ -0,0 +1 @@
+/target