chore(scheduler): weekly telemetry-agent run

Executed the weekly scheduler cycle for `telemetry-agent` (2026-02-15).
- Verified lock acquisition and memory retrieval.
- Executed agent logic: generated empty telemetry artifacts (`artifacts/error-aggregates-20260215.json`, `ai/reports/telemetry-20260215.md`) due to no opt-in sources.
- Verified memory storage.
- Published completion event and created task log.

Co-authored-by: PR0M3TH3AN <[email protected]>

task-logs/weekly/2026-02-15T23-21-16Z__telemetry-agent__completed.md

@@ -0,0 +1,22 @@
+---
+agent: telemetry-agent
+cadence: weekly
+run-start: 2026-02-15T23:21:16Z
+prompt: src/prompts/weekly/telemetry-agent.md
+---
+
+# Telemetry Agent Run - Completed
+
+## Goal
+Aggregate CI/test/agent/smoke failures into privacy-preserving telemetry.
+
+## Outcome
+- No opt-in telemetry sources found (`TELEMETRY=1` or `artifacts/telemetry-optin/`).
+- Generated empty aggregation artifacts as per protocol.
+
+## Artifacts
+- `artifacts/error-aggregates-20260215.json`
+- `ai/reports/telemetry-20260215.md`
+
+## Memory
+- Retrieval and storage operations completed successfully.