feat: share publish telemetry across services

[POWERFULMOVES]

Summary

• factor shared publish telemetry helpers into services/common/telemetry.py
• extend the publisher and Discord publisher services to expose turnaround/latency metrics and persist Supabase rollups
• document the telemetry endpoints and ROI dashboard guidance in the roadmap and supporting docs

Testing

• pytest pmoves/services/publisher/tests/test_publisher.py

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https://chatgpt.com/codex/tasks/task_b_68da91415cb883249c4ea74255fa1a3d

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📥 Commits

Reviewing files that changed from the base of the PR and between 5ca96b1 and 1e3c723.

📒 Files selected for processing (7)

• pmoves/docs/NEXT_STEPS.md (2 hunks)
• pmoves/docs/ROADMAP.md (2 hunks)
• pmoves/docs/TELEMETRY_ROI.md (1 hunks)
• pmoves/services/common/telemetry.py (1 hunks)
• pmoves/services/publisher-discord/main.py (7 hunks)
• pmoves/services/publisher/README.md (1 hunks)
• pmoves/services/publisher/publisher.py (3 hunks)

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