Update FIRST_RELEASE_REPORT.md with Jenkins builder option documentation

- Add --run-jenkins-builder option to Script Options Reference
- Add Step 5: Generate RPM/DEB Packages Inside Docker (new feature)
- Update Step 6 to Step 7: Verify Generated Packages
- Update Next Steps with Option A (Inside Docker) and Option B (Direct Jenkins)
- Update Known Test Exclusions: test_nglpdfwidget now passing

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Entire-Checkpoint: 01M4DGMZ85QPEY1768PYQ45ZHF

files/FIRST_RELEASE_REPORT.md

@@ -497,9 +497,42 @@ docker run --rm legatus-qt6-prebuilt:latest bash -c "apt list --installed 2>/dev
 # Output: libkf6texttemplate-dev/now 6.24.0-0ubuntu1 amd64 [installed,local]
 ```
 
-#### Step 5: Generate RPM/DEB Packages (Jenkins Pipeline)
+#### Step 5: Generate RPM/DEB Packages Inside Docker (New Feature)
 
-For full package generation, use the Jenkins builder scripts:
+The `new_docker_build.sh` script now supports running the Jenkins builder inside the Docker container:
+
+```bash
+cd /path/to/qt6-migration-pipeline/qt-migration-legatus/qt6-after/qt6-migrated-legatus
+
+# Run Jenkins builder inside Docker with prebuilt image
+./new_docker_build.sh --use-prebuilt-image --run-jenkins-builder --package-output-dir ./packages-out
+```
+
+**Environment Variables (with defaults):**
+- `PROJECT=guez` (project name)
+- `GUEZ_MODE=ON` (enable guez-specific build logic)
+- `LTS_VERSION=1.0` (version string for packages)
+- `BUILD_NUMBER=1` (build number)
+- `BUILD_TAG=manual-build` (build identifier)
+- `OS_VERSION` (auto-detected from /etc/os-release)
+
+**Expected Results:**
+- Exit code: 0
+- DEB packages generated in `./packages-out/` directory (mounted from container)
+- Packages for: TetraIF, Z, Lts/Common components
+- Build log output in Docker container
+
+**Package Output:**
+```
+./packages-out/
+├── tetraif_1.0-1_amd64.deb
+├── z-components_1.0-1_amd64.deb
+└── lts-common_1.0-1_amd64.deb
+```
+
+#### Step 6: Generate RPM/DEB Packages (Jenkins Pipeline - Alternative)
+
+For full package generation outside Docker, use the Jenkins builder scripts:
 
 ```bash
 # For openSUSE RPM packages
@@ -514,9 +547,9 @@ cd /path/to/qt6-migration-pipeline/jenkins-ci-rme
 - RPM/DEB packages generated in `${WORKSPACE}/rpms/`
 - Packages for: TetraIF, Z, Lts/Common components
 
-#### Step 6: Verify Generated Packages
+#### Step 7: Verify Generated Packages
 
-After running Jenkins builder scripts, verify packages with:
+After running Jenkins builder scripts (Step 5 or Step 6), verify packages with:
 
 ```bash
 cd /path/to/qt6-migration-pipeline/qt-migration-legatus/qt6-after/qt6-migrated-legatus
@@ -571,6 +604,17 @@ INFO: Package verification: SUCCESS
 
 # Combine options for release build with verification
 ./new_docker_build.sh --use-prebuilt-image --verify-rpm
+
+# Run Jenkins builder inside Docker to generate RPM/DEB packages
+./new_docker_build.sh --use-prebuilt-image --run-jenkins-builder --package-output-dir ./packages-out
+
+# Full options for Jenkins builder execution
+./new_docker_build.sh --use-prebuilt-image --run-jenkins-builder \
+    --package-output-dir ./packages-out \
+    --lts-version 1.0 \
+    --project guez \
+    --build-number 1 \
+    --build-tag manual-build
 ```
 
 **Docker Image Details:**
@@ -616,7 +660,14 @@ Jenkins jobs using jenkins_builder.sh or jenkins_builder_ubuntu26.sh will automa
 
 ## Next Steps
 
-1. **Full RPM Package Build:** Run Jenkins builder scripts to generate actual RPM/DEB packages:
+1. **Full RPM Package Build (Option A - Inside Docker):** Use the new `--run-jenkins-builder` option:
+   ```bash
+   cd qt-migration-legatus/qt6-after/qt6-migrated-legatus
+   ./new_docker_build.sh --use-prebuilt-image --run-jenkins-builder --package-output-dir ./packages-out
+   ```
+   Verify DEB packages are generated in `./packages-out/` directory for TetraIF, Z, and Lts/Common components.
+
+2. **Full RPM Package Build (Option B - Direct Jenkins):** Run Jenkins builder scripts directly:
    ```bash
    # For openSUSE
    ./jenkins-ci-rme/jenkins_builder.sh
@@ -634,11 +685,12 @@ Jenkins jobs using jenkins_builder.sh or jenkins_builder_ubuntu26.sh will automa
 4. **Documentation:** Update release notes with Qt6 migration changes
 
 5. **Known Test Exclusions** (Documented - Not Blocking Release)
-   - test_nglpdfwidget: Requires Poppler-Qt6 (external dependency)
    - nglcomp_test: Qt6 compression library migration issue
-   - grantlee_parser_smoke: Requires KF6TextTemplate plugin (external dependency)
+   - grantlee_parser_smoke: Requires KF6TextTemplate plugin (external dependency, parent target not in release scope)
    - migration_tests_NOT_BUILT: Tests from excluded modules (expected)
 
+**Note:** test_nglpdfwidget is now **passing** after Poppler-Qt6 packages were added to Docker image.
+
 ## Notes
 
 - The nested submodule `qt5-legatus-legacy` remains on `story/qt6-migration` branch (correct per release prompt requirements)