fix(ci): exclude emulated integration tests from partition jobs, add test-emulated

Emulated XCM integration tests call WASM_BINARY.expect() in their genesis
functions (e.g. asset-hub-zagros/genesis.rs:168). With SKIP_WASM_BUILD=1
(set in .test-base) these all panic immediately with "WASM binary was not
built, please build it!" — causing every test-partition and
test-no-try-runtime job to fail.

Fix: exclude all 10 emulated integration test packages from the 5 partition
jobs. Add a dedicated test-emulated job that runs those 10 packages with
SKIP_WASM_BUILD=0, so WASM blobs are compiled and the genesis functions
succeed. test-emulated shares the same CARGO_TARGET_DIR as the partition
jobs so jemalloc, rocksdb, and Rust deps are warm; WASM blobs land in a
separate debug/build/<hash>/out/ subtree.

Packages excluded from partitions / run in test-emulated:
  asset-hub-pezkuwichain-integration-tests
  asset-hub-zagros-integration-tests
  collectives-zagros-integration-tests
  coretime-pezkuwichain-integration-tests
  coretime-zagros-integration-tests
  governance-zagros-integration-tests
  people-pezkuwichain-integration-tests
  people-zagros-integration-tests
  pezbridge-hub-pezkuwichain-integration-tests
  pezbridge-hub-zagros-integration-tests

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitlab-ci.yml

@@ -450,7 +450,17 @@ test-partition-1:
       cargo nextest run \
         --workspace --locked --no-fail-fast --cargo-quiet \
         --features try-runtime,experimental,ci-only-tests \
-        --partition count:1/3
+        --partition count:1/3 \
+        --exclude asset-hub-pezkuwichain-integration-tests \
+        --exclude asset-hub-zagros-integration-tests \
+        --exclude collectives-zagros-integration-tests \
+        --exclude coretime-pezkuwichain-integration-tests \
+        --exclude coretime-zagros-integration-tests \
+        --exclude governance-zagros-integration-tests \
+        --exclude people-pezkuwichain-integration-tests \
+        --exclude people-zagros-integration-tests \
+        --exclude pezbridge-hub-pezkuwichain-integration-tests \
+        --exclude pezbridge-hub-zagros-integration-tests
   artifacts:
     when: always
     paths: [test-results-1.xml]
@@ -466,7 +476,17 @@ test-partition-2:
       cargo nextest run \
         --workspace --locked --no-fail-fast --cargo-quiet \
         --features try-runtime,experimental,ci-only-tests \
-        --partition count:2/3
+        --partition count:2/3 \
+        --exclude asset-hub-pezkuwichain-integration-tests \
+        --exclude asset-hub-zagros-integration-tests \
+        --exclude collectives-zagros-integration-tests \
+        --exclude coretime-pezkuwichain-integration-tests \
+        --exclude coretime-zagros-integration-tests \
+        --exclude governance-zagros-integration-tests \
+        --exclude people-pezkuwichain-integration-tests \
+        --exclude people-zagros-integration-tests \
+        --exclude pezbridge-hub-pezkuwichain-integration-tests \
+        --exclude pezbridge-hub-zagros-integration-tests
   artifacts:
     when: always
     paths: [test-results-2.xml]
@@ -482,8 +502,18 @@ test-partition-3:
       cargo nextest run \
         --workspace --locked --no-fail-fast --cargo-quiet \
         --features try-runtime,experimental,ci-only-tests \
-        --partition count:3/3
-    # First partition also runs runtime-api tests
+        --partition count:3/3 \
+        --exclude asset-hub-pezkuwichain-integration-tests \
+        --exclude asset-hub-zagros-integration-tests \
+        --exclude collectives-zagros-integration-tests \
+        --exclude coretime-pezkuwichain-integration-tests \
+        --exclude coretime-zagros-integration-tests \
+        --exclude governance-zagros-integration-tests \
+        --exclude people-pezkuwichain-integration-tests \
+        --exclude people-zagros-integration-tests \
+        --exclude pezbridge-hub-pezkuwichain-integration-tests \
+        --exclude pezbridge-hub-zagros-integration-tests
+    # Also runs runtime-api tests
     - cargo nextest run -p pezsp-api-test --features enable-pez-staging-api --cargo-quiet
   artifacts:
     when: always
@@ -500,7 +530,17 @@ test-no-try-runtime-1:
       cargo nextest run \
         --workspace --locked --no-fail-fast --cargo-quiet \
         --features experimental,ci-only-tests \
-        --partition count:1/2
+        --partition count:1/2 \
+        --exclude asset-hub-pezkuwichain-integration-tests \
+        --exclude asset-hub-zagros-integration-tests \
+        --exclude collectives-zagros-integration-tests \
+        --exclude coretime-pezkuwichain-integration-tests \
+        --exclude coretime-zagros-integration-tests \
+        --exclude governance-zagros-integration-tests \
+        --exclude people-pezkuwichain-integration-tests \
+        --exclude people-zagros-integration-tests \
+        --exclude pezbridge-hub-pezkuwichain-integration-tests \
+        --exclude pezbridge-hub-zagros-integration-tests
 
 test-no-try-runtime-2:
   extends: .test-base
@@ -510,7 +550,74 @@ test-no-try-runtime-2:
       cargo nextest run \
         --workspace --locked --no-fail-fast --cargo-quiet \
         --features experimental,ci-only-tests \
-        --partition count:2/2
+        --partition count:2/2 \
+        --exclude asset-hub-pezkuwichain-integration-tests \
+        --exclude asset-hub-zagros-integration-tests \
+        --exclude collectives-zagros-integration-tests \
+        --exclude coretime-pezkuwichain-integration-tests \
+        --exclude coretime-zagros-integration-tests \
+        --exclude governance-zagros-integration-tests \
+        --exclude people-pezkuwichain-integration-tests \
+        --exclude people-zagros-integration-tests \
+        --exclude pezbridge-hub-pezkuwichain-integration-tests \
+        --exclude pezbridge-hub-zagros-integration-tests
+
+# Emulated XCM integration tests — require WASM blobs, run separately with
+# SKIP_WASM_BUILD=0. Uses the same CARGO_TARGET_DIR as test-partition jobs so
+# Rust artifacts (deps/, jemalloc, rocksdb) are already warm from those jobs.
+# WASM blobs land in debug/build/<wasm-builder-hash>/out/ — separate subtree.
+test-emulated:
+  stage: test
+  tags: [pezkuwi-runner]
+  needs: [check-try-runtime]
+  variables:
+    CARGO_HOME: /root/.cargo
+    SKIP_WASM_BUILD: "0"
+    WASM_BUILD_NO_COLOR: "1"
+    WASM_BUILD_WORKSPACE_HINT: "$CI_PROJECT_DIR"
+    CARGO_INCREMENTAL: "0"
+    RUSTFLAGS: "-Cdebug-assertions=y -Dwarnings -Cdebuginfo=1 -Clink-arg=-fuse-ld=lld"
+  before_script:
+    - rustup show
+    - rustc --version && cargo --version
+    - rustup target add wasm32v1-none
+    - export CACHE_KEY="$(cat Cargo.lock rust-toolchain.toml | md5sum | cut -c1-12)"
+    - export CARGO_TARGET_DIR="/cache/cargo-target/${CACHE_KEY}/test-release"
+    - mkdir -p "$CARGO_TARGET_DIR"
+    - find /cache/cargo-target -mindepth 1 -maxdepth 1 -type d ! -name "${CACHE_KEY}" -exec rm -rf {} + 2>/dev/null || true
+    - echo "CARGO_TARGET_DIR=$CARGO_TARGET_DIR (disk $(df -h /cache/cargo-target | tail -1 | awk '{print $3 "/" $2 " used, " $4 " free"}'))"
+  cache: []
+  timeout: 420m
+  retry:
+    max: 1
+    when:
+      - runner_system_failure
+      - unknown_failure
+  script:
+    - git config --global --add safe.directory '*'
+    - |
+      cargo nextest run --locked --no-fail-fast --cargo-quiet \
+        -p asset-hub-pezkuwichain-integration-tests \
+        -p asset-hub-zagros-integration-tests \
+        -p collectives-zagros-integration-tests \
+        -p coretime-pezkuwichain-integration-tests \
+        -p coretime-zagros-integration-tests \
+        -p governance-zagros-integration-tests \
+        -p people-pezkuwichain-integration-tests \
+        -p people-zagros-integration-tests \
+        -p pezbridge-hub-pezkuwichain-integration-tests \
+        -p pezbridge-hub-zagros-integration-tests
+  artifacts:
+    when: always
+    paths: [test-results-emulated.xml]
+    reports:
+      junit: test-results-emulated.xml
+    expire_in: 7 days
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_PIPELINE_SOURCE == "schedule"
+    - if: $CI_PIPELINE_SOURCE == "web"
+      when: manual
 
 wasm-check:
   stage: test