fix(sol): minor issues and code quality

.github/workflows/solana.yaml

@@ -0,0 +1,53 @@
+name: Solana CI
+
+on:
+  push:
+    branches: [main, develop]
+    paths:
+      - 'solana/**'
+  pull_request:
+    paths:
+      - 'solana/**'
+
+jobs:
+  test:
+    name: Mollusk Tests
+    runs-on: warp-ubuntu-2204-x64-16x
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install system dependencies
+        run: sudo apt-get update && sudo apt-get install -y libudev-dev
+
+      - name: Setup Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: 1.86.0
+
+      - name: Cache Solana CLI and platform tools
+        uses: actions/cache@v3
+        id: solana-cache
+        with:
+          path: |
+            ~/.local/share/solana
+            ~/.cache/solana
+          key: ${{ runner.os }}-solana-stable
+
+      - name: Install Solana CLI
+        if: steps.solana-cache.outputs.cache-hit != 'true'
+        run: sh -c "$(curl -sSfL https://release.anza.xyz/stable/install)"
+
+      - name: Cache Rust dependencies
+        uses: Swatinem/rust-cache@v2
+        with:
+          cache-provider: warpbuild
+          shared-key: "solana-test"
+          workspaces: solana
+          cache-on-failure: true
+          cache-all-crates: true
+
+      - name: Run Mollusk tests
+        run: |
+          export PATH="$HOME/.local/share/solana/install/active_release/bin:$PATH"
+          make solana-run-tests

Makefile

@@ -82,3 +82,7 @@ solana-deploy-dev solana-deploy:
 
 rust-run-tests:
 	cargo nextest run --manifest-path $(NEAR_MANIFEST) --all-features
+
+solana-run-tests:
+	cd $(MAKEFILE_DIR)/solana && cargo build-sbf
+	cd $(MAKEFILE_DIR)/solana && cargo test --package bridge_token_factory --test mollusk --features no-entrypoint

solana/CLAUDE.md

@@ -4,8 +4,8 @@
 
 ```sh
 cd solana
-anchor build          # build the program
-anchor test           # run tests (requires local validator)
+anchor build          # build bridge_token_factory.so + stub_program.so
+cargo test --package bridge_token_factory --test mollusk  # fast unit tests, no validator
 ```
 
 ## Key Architecture