feat: Add server telemetry endpoint and structured JSON logging - #10
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Expose GET /telemetry with nearest-rank p50/p95/p99 for LLM and tool spans, plus one-line JSON request logs with X-Request-Id correlation.
ThomasHartDev
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Jul 27, 2026
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Wires GET /telemetry on the Hono server so scrapers can pull nearest-rank p50/p95/p99 for LLM and tool spans that the agent loop already records. Empty series come back as zeros so a dashboard can poll before any traffic. Same path stays outside the rate-limit middleware so probes do not burn client tokens.
Also added a small JSON logger that writes one object per line (ts, level, requestId, method, path, status, durationMs) and echoes or mints X-Request-Id. Makes the server logs actually joinable when it ends up in a container. Tests cover the percentile edge cases and the request log path.