Fix REPL single-message hang and cap CI test duration (#1643)

* Fix REPL single-message hang and cap CI test duration

* Fix Clippy nested-if lint in REPL startup

* Fix single-message approval flow

* Handle empty single-message REPL exits

* Wait for one-shot event routines before exit

.github/workflows/test.yml

@@ -12,6 +12,7 @@ jobs:
   tests:
     name: Tests (${{ matrix.name }})
     runs-on: ubuntu-latest
+    timeout-minutes: 45
     strategy:
       fail-fast: false
       matrix:
@@ -40,11 +41,14 @@ jobs:
       - name: Build WASM channels (for integration tests)
         run: ./scripts/build-wasm-extensions.sh --channels
       - name: Run Tests
-        run: cargo test ${{ matrix.flags }} -- --nocapture
+        run: |
+          timeout --signal=INT --kill-after=30s 40m \
+            cargo test ${{ matrix.flags }} -- --nocapture
 
   heavy-integration-tests:
     name: Heavy Integration Tests
     runs-on: ubuntu-latest
+    timeout-minutes: 20
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6
@@ -58,9 +62,13 @@ jobs:
       - name: Build Telegram WASM channel
         run: cargo build --manifest-path channels-src/telegram/Cargo.toml --target wasm32-wasip2 --release
       - name: Run thread scheduling integration tests
-        run: cargo test --no-default-features --features libsql,integration --test e2e_thread_scheduling -- --nocapture
+        run: |
+          timeout --signal=INT --kill-after=30s 15m \
+            cargo test --no-default-features --features libsql,integration --test e2e_thread_scheduling -- --nocapture
       - name: Run Telegram thread-scope regression test
-        run: cargo test --features integration --test telegram_auth_integration test_private_messages_use_chat_id_as_thread_scope -- --exact
+        run: |
+          timeout --signal=INT --kill-after=30s 10m \
+            cargo test --features integration --test telegram_auth_integration test_private_messages_use_chat_id_as_thread_scope -- --exact
 
   telegram-tests:
     name: Telegram Channel Tests
@@ -68,6 +76,7 @@ jobs:
       github.event_name != 'pull_request' ||
       github.base_ref != 'staging'
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6
@@ -75,7 +84,9 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: Run Telegram Channel Tests
-        run: cargo test --manifest-path channels-src/telegram/Cargo.toml -- --nocapture
+        run: |
+          timeout --signal=INT --kill-after=30s 10m \
+            cargo test --manifest-path channels-src/telegram/Cargo.toml -- --nocapture
 
   windows-build:
     name: Windows Build (${{ matrix.name }})
@@ -110,6 +121,7 @@ jobs:
       github.event_name != 'pull_request' ||
       github.base_ref != 'staging'
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6
@@ -125,7 +137,9 @@ jobs:
       - name: Build all WASM extensions against current WIT
         run: ./scripts/build-wasm-extensions.sh
       - name: Instantiation test (host linker compatibility)
-        run: cargo test --all-features wit_compat -- --nocapture
+        run: |
+          timeout --signal=INT --kill-after=30s 20m \
+            cargo test --all-features wit_compat -- --nocapture
 
   bench-compile:
     name: Benchmark Compilation