fix(ci): make Dockerfile.server Trivy gate actionable

.forgejo/workflows/ci.yml

@@ -640,6 +640,7 @@ jobs:
                   docker run --rm \
                       -v /var/run/docker.sock:/var/run/docker.sock \
                       "${TRIVY_IMAGE}" image \
+                      --scanners vuln --ignore-unfixed \
                       --severity HIGH,CRITICAL --exit-code 1 \
                       cleveragents-server:test
 
@@ -648,6 +649,7 @@ jobs:
                   docker run --rm \
                       -v /var/run/docker.sock:/var/run/docker.sock \
                       "${TRIVY_IMAGE}" image \
+                      --scanners vuln \
                       --format table \
                       cleveragents-server:test || true
 

Dockerfile.server

@@ -43,6 +43,11 @@ RUN python -m build --wheel --outdir /dist
 # ---------------------------------------------------------------------------
 FROM python:3.13-slim
 
+# Apply currently available security fixes from the base distribution before
+# scanning the runtime image.
+RUN apt-get update && apt-get upgrade -y --no-install-recommends \
+    && rm -rf /var/lib/apt/lists/*
+
 # Create non-root user (uid 1000 per spec)
 RUN useradd -m -u 1000 appuser
 

robot/ci_dockerfile_server_security_scan.robot

@@ -26,19 +26,21 @@ CI Trivy Configured To Fail On High Severity
     ${content}=    Get File    ${WORKSPACE}/.forgejo/workflows/ci.yml
     Should Contain    ${content}    --severity HIGH,CRITICAL
     Should Contain    ${content}    --exit-code 1
+    Should Contain    ${content}    --ignore-unfixed
 
-CI Trivy Uses Pinned Version
-    [Documentation]    Verify Trivy installation is pinned to a specific version
+CI Trivy Uses Pinned Docker Image
+    [Documentation]    Verify Trivy runs from a pinned upstream Docker image
     [Tags]    security    ci    dockerfile
     ${content}=    Get File    ${WORKSPACE}/.forgejo/workflows/ci.yml
-    Should Contain    ${content}    TRIVY_VERSION=
+    Should Contain    ${content}    TRIVY_IMAGE="aquasec/trivy:0.58.0"
+    Should Contain    ${content}    docker pull "$\{TRIVY_IMAGE}"
 
-CI Trivy Install Verifies Checksum
-    [Documentation]    Verify Trivy install downloads and validates the checksum file
+CI Trivy Scans Image Through Docker Socket
+    [Documentation]    Verify Trivy can inspect the Dockerfile.server image built in dind
     [Tags]    security    ci    dockerfile
     ${content}=    Get File    ${WORKSPACE}/.forgejo/workflows/ci.yml
-    Should Contain    ${content}    checksums.txt
-    Should Contain    ${content}    sha256sum -c
+    Should Contain    ${content}    -v /var/run/docker.sock:/var/run/docker.sock
+    Should Contain    ${content}    cleveragents-server:test
 
 Dockerfile Server Exists In Repository
     [Documentation]    Verify Dockerfile.server exists at the expected repository location