ci: fix publish order — core before dependents, add index propagation delay

photon-ring-async and photon-ring-metrics depend on photon-ring ^2.5.0.
They must be published AFTER the core crate, not before. Added 30s
sleeps between publishes for crates.io index propagation.

Order: derive → core → async + metrics

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: userFRM

.github/workflows/ci.yml

@@ -214,7 +214,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
+      # Publish order matters: derive first (no deps), then core (depends on
+      # derive), then async+metrics (depend on core). Sleep between publishes
+      # to let the crates.io index propagate.
       - run: cargo publish -p photon-ring-derive --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
+      - run: sleep 30
+      - run: cargo publish --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
+      - run: sleep 30
       - run: cargo publish -p photon-ring-async --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
       - run: cargo publish -p photon-ring-metrics --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
-      - run: cargo publish --token ${{ secrets.CARGO_REGISTRY_TOKEN }}