Sækja opencode 1.17.4

Core
Improvements
- Added cwd support for local MCP servers so they can start from a workspace-relative directory. (@Grantmartin2002)
- Added connector-based authentication flows and support for stored provider credentials.
- Added v2 API endpoints to create and fetch sessions, list session questions, and resolve the active location.
- File reads now return raw content with the correct content type for API and SDK clients.
- MCP server log notifications are now surfaced in opencode logs.
Bugfixes
- Fixed Gemini tool schemas that used multi-type fields so compatible tools keep working. (@Killusions)
- Content-filtered model responses now surface as visible errors instead of failing silently. (@kkdawkins)
- Fixed MCP auth and debug requests dropping configured headers.
- Snapshot creation now reuses source Git objects to avoid long re-hashing delays on huge repos. (@dmtrKovalenko)
- Fixed MCP catalog request timeouts not applying when listing prompts, resources, or tools.
Thank you to 5 community contributors:
- @dmtrKovalenko:
- fix(snapshot): reuse source git objects to avoid re-hashing huge repos (#31798)
- @tobwen:
- fix(tui): preserve exit epilogue during scoped shutdown (#31805)
- @kkdawkins:
- fix(opencode): surface content-filter finish reason as visible error (#31745)
- @Killusions:
- fix(gemini): prevent gemini incompatibility with some tools (#31877)
- @Grantmartin2002:
- feat(opencode): support cwd on local MCP servers (#30676)