Add reusable E2E workflow and PR trigger (#10)

* Add reusable E2E workflow, PR trigger, and latest tag for stellar-cli

- Extract E2E logic into reusable workflow_call for cross-repo PR checks
- Add pull_request trigger to run E2E on local-dev PRs
- Add latest tag to stellar-cli release workflow

* Write STELLAR_RPC_URL to provider.env in setup script

Author: AquiGorka

.github/workflows/e2e-reusable.yml

@@ -0,0 +1,85 @@
+name: E2E Tests (Reusable)
+
+on:
+  workflow_call:
+    inputs:
+      contracts_version:
+        description: "soroban-core release tag (e.g. v0.1.0)"
+        type: string
+        default: "latest"
+      provider_version:
+        description: "provider-platform image tag (e.g. 0.2.0)"
+        type: string
+        default: "latest"
+      stellar_cli_version:
+        description: "stellar-cli image tag (e.g. 0.1.0)"
+        type: string
+        default: "latest"
+      contracts_artifact:
+        description: "Name of a workflow artifact containing wasms (overrides release download)"
+        type: string
+        default: ""
+      provider_image_override:
+        description: "Full image ref override for provider-platform (e.g. ghcr.io/org/repo:sha-abc123)"
+        type: string
+        default: ""
+    secrets:
+      E2E_TRIGGER_TOKEN:
+        required: true
+
+env:
+  REGISTRY: ghcr.io
+  ORG: moonlight-protocol
+
+jobs:
+  e2e:
+    runs-on: ubuntu-latest
+    permissions:
+      packages: read
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          repository: moonlight-protocol/local-dev
+          ref: main
+          token: ${{ secrets.E2E_TRIGGER_TOKEN }}
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.E2E_TRIGGER_TOKEN }}
+
+      - name: Download contract wasms from artifact
+        if: inputs.contracts_artifact != ''
+        uses: actions/download-artifact@v4
+        with:
+          name: ${{ inputs.contracts_artifact }}
+          path: e2e/wasms
+
+      - name: Download contract wasms from release
+        if: inputs.contracts_artifact == ''
+        env:
+          GH_TOKEN: ${{ secrets.E2E_TRIGGER_TOKEN }}
+          VERSION: ${{ inputs.contracts_version }}
+        run: |
+          mkdir -p e2e/wasms
+          if [ "$VERSION" = "latest" ]; then
+            gh release download --repo ${{ env.ORG }}/soroban-core -p '*.wasm' -D e2e/wasms/
+          else
+            gh release download "$VERSION" --repo ${{ env.ORG }}/soroban-core -p '*.wasm' -D e2e/wasms/
+          fi
+          ls -la e2e/wasms/
+
+      - name: Run E2E tests
+        env:
+          STELLAR_CLI_IMAGE: ${{ env.REGISTRY }}/${{ env.ORG }}/stellar-cli:${{ inputs.stellar_cli_version }}
+          PROVIDER_IMAGE: ${{ inputs.provider_image_override != '' && inputs.provider_image_override || format('{0}/{1}/provider-platform:{2}', env.REGISTRY, env.ORG, inputs.provider_version) }}
+        working-directory: e2e
+        run: |
+          docker compose up -d
+          EXIT_CODE=$(docker wait e2e-test-runner-1)
+          echo "--- test-runner logs ---"
+          docker compose logs test-runner
+          docker compose down
+          exit $EXIT_CODE

.github/workflows/e2e.yml

@@ -1,6 +1,8 @@
 name: E2E Tests
 
 on:
+  pull_request:
+    branches: [main]
   repository_dispatch:
     types: [module-release]
   workflow_dispatch:
@@ -85,9 +87,7 @@ jobs:
         working-directory: e2e
         run: |
           docker compose up -d
-          # Wait for test-runner to finish and capture its exit code
-          docker wait e2e-test-runner-1
-          EXIT_CODE=$?
+          EXIT_CODE=$(docker wait e2e-test-runner-1)
           echo "--- test-runner logs ---"
           docker compose logs test-runner
           docker compose down

.github/workflows/release-stellar-cli.yml

@@ -32,6 +32,7 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
             type=match,pattern=stellar-cli-v(.*),group=1
+            type=raw,value=latest
 
       - name: Build and push
         uses: docker/build-push-action@v6

e2e/setup.sh

@@ -100,6 +100,7 @@ MODE=development
 LOG_LEVEL=TRACE
 SERVICE_DOMAIN=localhost
 
+STELLAR_RPC_URL=$STELLAR_RPC_URL
 NETWORK=local
 NETWORK_FEE=1000000000
 CHANNEL_CONTRACT_ID=$CHANNEL_ID