fix(ci): skip CI on draft PRs (#1423)

Added draft check to entry-point jobs (check-changes in docker.yml,
pre-commit in code-cleanup.yml). All downstream jobs depend on these
via `needs`, so everything skips when a PR is draft.

Uses `github.event_name != 'pull_request' || github.event.pull_request.draft == false`
to ensure push events (merges to main/dev) still trigger CI — only
pull_request events check draft status.

Author: spomichter

.github/workflows/code-cleanup.yml

@@ -10,6 +10,7 @@ permissions:
 
 jobs:
   pre-commit:
+    if: github.event_name != 'pull_request' || github.event.pull_request.draft == false
     runs-on: self-hosted
     steps:
     - name: Fix permissions

.github/workflows/docker.yml

@@ -16,6 +16,7 @@ permissions:
 
 jobs:
   check-changes:
+    if: github.event_name != 'pull_request' || github.event.pull_request.draft == false
     runs-on: [self-hosted, Linux]
     outputs:
       ros:    ${{ steps.filter.outputs.ros }}