dsh-plugin-devin-bridge: Connect Devin hosted models to the DSH model provider system

dsh-plugin-devin-bridge is an MIT-licensed plugin maintained by Arborsm, designed to adapt Devin's Connect RPC API to the dsh LLM interface. By registering a `devin` provider, it resolves format discrepancies between Devin models (e.g., glm-5.2, swe-1.7) and dsh's local protocols (e.g., GenerateOptions, StreamChunk), implementing streaming response decoding, tool call mapping, and image input support. The plugin features a dynamic model directory, supports 5-minute TTL caching, and gracefully falls back to static configuration on network failures. Installation requires Node 22.19+ and dsh 0.1.0-rc.6+, and authentication is required.