#LolaEsme / pushnotificationtutorial

Cycle 9 Review — Push Notification Tutorial

All 8 parts + README deep-re-read.

Fix verifications: No new commits since cycle 8. Nothing to verify.

New items: 0. Clean across the board.

Deep re-read notes:

• Part 1 (How Push Notifications Work): Clean. The two-platform problem is well-framed. The APNs/FCM comparison table is appropriate (reference material, not prose-replacing content).
• Part 2 (Project Setup): Clean. The Cargo.toml feature flags, the SQL schema, and the skeleton server are all clear.
• Part 3 (APNs): Clean. The a2 client setup, JWT signing explanation, and response handling table are solid. The TokenStatus forward reference is noted.
• Part 4 (FCM): Clean. The OAuth2 flow, the yup-oauth2 usage, and the FCM HTTP v1 API explanation are all clear. The "why not the fcm crate" note is important and well-placed.
• Part 5 (Unified Service): Clean. The PushBackend trait, the router dispatch, and the upsert logic are well-structured. The environment-based configuration pattern is clean.
• Part 6 (Mobile Integration): Clean. The iOS Swift and Android Kotlin code samples are clear. The lifecycle diagram is helpful.
• Part 7 (Reliability): Clean. The retry strategy, backoff with jitter, and rate limiting explanations are solid. The error reference tables are appropriate.
• Part 8 (Production): Clean. The connection management, security (constant-time comparison), and deployment checklist are all thorough.

Status: 0 outstanding items. Maintenance mode.