The /session/{id} URL prefix collided with OpenCode's internal
/session/{slug} SPA routes, causing a blank page. Now /c/{id} is
a thin entry point that sets a session cookie and redirects to /,
where the SPA loads at root with its router working correctly.
This also replaces ~50 individual per-path proxy route handlers
with a single /{path:path} catch-all, and simplifies the Caddyfile
from ~180 lines to ~17.
The SSE proxy was buffering the entire response body with a 30s read
timeout, causing 504s on the OpenCode /global/event stream. Add a
streaming path that detects SSE requests (by Accept header or /event
path) and returns a StreamingResponse with no read timeout.
Also fix the make try target to poll the health endpoint for Docker
readiness and wait for the container to reach running status before
opening the browser.
Added proxy routes for all OpenCode internal API endpoints to support
full application functionality when accessed via session manager:
- project, agent, config, model endpoints
- thread, chat, conversation endpoints
- command, mcp, lsp, vcs endpoints
- permission, question, event, status endpoints
- internal session endpoint (distinct from container sessions)
Also updated Caddyfile for routing configuration.
