feat(devin): add Devin CLI + API worker (MOT-3880)

README.md

@@ -43,6 +43,7 @@ npx skills add iii-hq/iii --all
 | [`harness`](harness/) | Node | TS port of the iii harness stack — bundles `harness` (provider registry + credentials/settings/permissions via the `configuration` worker), `turn-orchestrator`, `hook-fanout`, `models-catalog`, the `provider-*` workers, `llm-budget`, and `context-compaction` as one pnpm monorepo. Approval is delegated to the standalone `approval-gate` worker via the `pre_trigger` hook. Conversations persist in `session-manager`. See [`harness/README.md`](harness/README.md). |
 | [`codex`](codex/) | Rust | OpenAI Codex as an iii worker — `codex::*` spawn the codex CLI for headless turns, mirror raw thread events onto `codex::events`, and stream AgentEvent frames onto `agent::events`. |
 | [`grok`](grok/) | Rust | xAI Grok CLI as an iii worker — `grok::*` spawn the grok CLI for headless turns (`grok --print --output-format streaming-json`), mirror raw events onto `grok::events`, and stream AgentEvent frames onto `agent::events`. |
+| [`devin`](devin/) | Rust | Devin as an iii worker: `devin::run` drives the local devin CLI and streams AgentEvent frames onto `agent::events`, `devin::session::*` wrap the Devin cloud session lifecycle, and `devin::api` reaches any v3 endpoint. |
 | [`claude-code`](claude-code/) | Node | Claude Code as an iii worker — `claude::*` runs headless Claude Code turns, mirrors raw messages onto `claude::events`, and streams AgentEvent frames onto `agent::events`. |
 | [`pi`](pi/) | Node | Pi coding agent as an iii worker — `pi::*` run headless Pi turns, mirror raw events onto `pi::events`, and stream AgentEvent frames onto `agent::events`. |
 | [`hermes`](hermes/) | Python | Hermes agent as an iii worker — `hermes::run` runs headless turns with the iii runtime context, `hermes::send` delivers to 27+ messaging platforms, and inbound platform/webhook events republish via `hermes::inbound`. |

devin/.gitignore

@@ -0,0 +1,2 @@
+/target
+*.tsbuildinfo