Generate e2e/.env from up.sh and fix SAC deploy error

.gitignore

@@ -1,2 +1,3 @@
 *.pid
 *.log
+e2e/.env

e2e/config.ts

@@ -33,15 +33,16 @@ function loadEnvFile(path: string): Record<string, string> {
 }
 
 export function loadConfig(): Config {
-  // In Docker: env vars are set by docker-compose, contract IDs come from /config/contracts.env
-  // Locally: everything comes from the provider-platform .env file
+  // Priority: Docker contracts.env > local e2e/.env > provider-platform .env
   const contractsEnv = loadEnvFile("/config/contracts.env");
 
+  const localEnv = loadEnvFile(new URL("./.env", import.meta.url).pathname);
+
   const providerPlatformPath = Deno.env.get("PROVIDER_PLATFORM_PATH") ??
     `${Deno.env.get("HOME")}/repos/provider-platform`;
   const providerEnv = loadEnvFile(`${providerPlatformPath}/.env`);
 
-  const env = { ...providerEnv, ...contractsEnv };
+  const env = { ...providerEnv, ...localEnv, ...contractsEnv };
 
   const networkPassphrase = Deno.env.get("STELLAR_NETWORK_PASSPHRASE") ??
     "Standalone Network ; February 2017";

up.sh

@@ -160,14 +160,16 @@ WASM_DIR="target/wasm32v1-none/release"
 [ -f "$WASM_DIR/privacy_channel.wasm" ] || error "privacy_channel.wasm not found"
 
 info "Deploying native XLM SAC (Stellar Asset Contract)..."
-TOKEN_ID=$(stellar contract asset deploy \
+if TOKEN_ID=$(stellar contract asset deploy \
   --asset native \
   --network local \
-  --source-account "$ACCT_ADMIN") || {
+  --source-account "$ACCT_ADMIN" 2>/dev/null); then
+  info "SAC deployed"
+else
   # SAC may already be deployed (shared network) — fetch its ID
   TOKEN_ID=$(stellar contract asset id --asset native --network local)
   warn "SAC already deployed: $TOKEN_ID"
-}
+fi
 info "XLM SAC:         $TOKEN_ID"
 
 info "Deploying channel-auth contract..."
@@ -408,6 +410,21 @@ for i in $(seq 1 10); do
   sleep 1
 done
 
+# ============================================================
+# Generate E2E config
+# ============================================================
+
+cat > "$SCRIPT_DIR/e2e/.env" <<EOF
+# Generated by local-dev/up.sh on $(date -u +%Y-%m-%dT%H:%M:%SZ)
+CHANNEL_CONTRACT_ID=$CHANNEL_ID
+CHANNEL_AUTH_ID=$AUTH_ID
+CHANNEL_ASSET_CONTRACT_ID=$TOKEN_ID
+PROVIDER_URL=http://localhost:$PROVIDER_PORT
+PROVIDER_SK=$PROVIDER_SK
+STELLAR_RPC_URL=http://localhost:${STELLAR_RPC_PORT}/soroban/rpc
+EOF
+info "E2E config written to e2e/.env"
+
 # ============================================================
 echo ""
 echo "========================================"