Clipon CMS 0.10.0

• Replaced request-time counting with signed, client-confirmed page_view events; plain GET, crawler, probe, 404, and 500 requests no longer affect product metrics.
• Added short-lived HMAC page tokens with key rotation, strict event envelopes, origin checks, rate limits, replay protection, and fail-closed diagnostics.
• Added 64-way daily state sharding with stable locks, atomic writes, idempotent event transitions, report caching, and schema v3 compaction.
• Moved tracking into a first-party JavaScript asset with visibility-aware views, bfcache refresh, engagement heartbeats, maximum scroll depth, and conversions.
• Preserved schema v2 report compatibility while adding open and compacted schema v3 reporting.