fix: resolve CI blockers — syntax, lock files, dependencies, type errors, orphaned files

.github/workflows/ci.yml

@@ -67,6 +67,9 @@ jobs:
       - name: Install Rust stable toolchain
         uses: dtolnay/rust-toolchain@stable
 
+      - name: Add wasm32 target
+        run: rustup target add wasm32-unknown-unknown
+
       - name: Cache Cargo registry
         uses: actions/cache@v4
         with:
@@ -154,6 +157,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Install Rust stable toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Add wasm32 target
+        run: rustup target add wasm32-unknown-unknown
+
       - name: Install cargo-audit
         uses: taiki-e/install-action@cargo-audit
 
@@ -185,8 +194,11 @@ jobs:
       - name: Install Rust stable toolchain
         uses: dtolnay/rust-toolchain@stable
 
+      - name: Install system dependencies for Soroban CLI
+        run: sudo apt-get update && sudo apt-get install -y libdbus-1-dev libudev-dev pkg-config
+
       - name: Install Soroban CLI
-        run: cargo install --locked soroban-cli --features opt
+        run: cargo install --locked soroban-cli
 
       - name: Build contracts
         working-directory: contract

.github/workflows/integration-tests.yml

@@ -33,6 +33,12 @@ jobs:
         cache: 'npm'
         cache-dependency-path: tests/integration/package.json
 
+    - name: Install Rust stable toolchain
+      uses: dtolnay/rust-toolchain@stable
+
+    - name: Add wasm32 target
+      run: rustup target add wasm32-unknown-unknown
+
     - name: Install dependencies
       run: npm ci
 

.gitignore

@@ -3,13 +3,17 @@
 ################################################################################
 
 # ============================================================================
-# PACKAGE MANAGERS - LOCK FILES (NEVER COMMIT)
+# PACKAGE MANAGERS - LOCK FILES
 # ============================================================================
-# These should be regenerated during setup, not stored in version control
-package-lock.json
+# NPM lock files SHOULD be committed for reproducible CI builds.
+# Other lock files are workspace-level and should be regenerated during setup.
 pnpm-lock.yaml
 yarn.lock
 Cargo.lock
+
+# ============================================================================
+# OTHER LOCK FILES
+# ============================================================================
 *.lock
 
 # ============================================================================
@@ -166,6 +170,7 @@ pids/
 # ============================================================================
 report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
 dump.rdb
+*.stackdump
 perf-results/
 
 # ============================================================================

app/backend/.gitignore

@@ -3,8 +3,8 @@
 /node_modules
 /build
 
-# Package manager lock files - should be regenerated
-package-lock.json
+# Package manager lock files — NPM lock files SHOULD be committed for reproducible CI builds.
+# Other lock files are workspace-level and should be regenerated during setup.
 pnpm-lock.yaml
 yarn.lock
 Cargo.lock