Fixes#221 - SQLite Memory Override bug.
This PR resolves memory overwrite behavior in autosave paths by replacing fixed memory keys with unique keys, and improves short-horizon recall quality in channel runtime.
**Root Cause**
SQLite memory uses a unique constraint on `memories.key` and writes with `ON CONFLICT(key) DO UPDATE`.
Several autosave paths reused fixed keys (or sender-stable keys), so newer messages overwrote earlier conversation entries.
**Changes**
- Channel runtime: autosave key changed from `channel_sender` to `channel_sender_messageId`
- Added memory-context injection before provider calls (aligned with agent loop behavior)
- Agent loop: autosave keys changed from fixed `user_msg`/`assistant_resp` to UUID-suffixed keys
- Gateway: Webhook/WhatsApp autosave keys changed to UUID-suffixed keys
All CI checks passing.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* feat: add OpenTelemetry tracing and metrics observer
Add OtelObserver that exports traces and metrics via OTLP HTTP/protobuf
to any OpenTelemetry-compatible collector (Jaeger, Grafana Tempo, etc.).
- ObserverEvents map to OTel spans (AgentEnd, ToolCall, Error) and
metric counters (AgentStart, ChannelMessage, HeartbeatTick)
- ObserverMetrics map to OTel histograms and gauges
- Spans include proper timing via SpanBuilder.with_start_time
- Config: backend="otel", otel_endpoint, otel_service_name
- Accepts "otel", "opentelemetry", "otlp" as backend aliases
- Graceful fallback to NoopObserver on init failure
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: resolve unused variable warning and update Cargo.lock
Prefix unused `resolved_key` with underscore to suppress clippy
warning introduced by upstream changes. Regenerate Cargo.lock
after rebase on main.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: address review comments on OTel observer
- Fix metric types: use Gauge for ActiveSessions/QueueDepth (absolute
readings, not deltas), Counter<u64> for TokensUsed (monotonic)
- Remove duplicate token recording from AgentEnd event handler
(TokensUsed metric via record_metric is the canonical path)
- Store meter_provider in struct so flush() exports both traces
and metrics (was silently dropping metrics on shutdown)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: argenis de la rosa <theonlyhennygod@gmail.com>
