feat: implement HTTP polling to bypass WebSocket issue

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The WebSocket closes immediately with code 1006 due to nginx/proxy
issues. This implementation completely bypasses WebSocket for
terminal output by using HTTP polling instead.

Architecture:
- Server buffers PTY output in memory (outputBuffer array)
- Frontend polls every 100ms via GET /terminals/:id/output?since=N
- Output entries have monotonically increasing index
- Old output is automatically cleaned up after 5 minutes
- Commands sent via HTTP POST (already implemented)

Changes:
- terminal-service.js: Added bufferOutput(), getTerminalOutput()
- terminal.js: Added startPolling(), stopPolling(), sendTerminalResize()
- server.js: Added GET /terminals/:id/output and POST /terminals/:id/resize
- No WebSocket needed for output display (keeps legacy compatibility)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

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uroma

2026-01-19 20:48:00 +00:00

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parent 9f35b68ea2

commit 64f1ffb484

5 changed files with 325 additions and 386 deletions

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