feat: refactor config flow and directory structure

- Create config-provider.yml (reusable workflow, conf→JSON)
- Replace duplicated job env blocks with workflow env + fromJson
- Move provider workflows to workflows/ directory
- Move consumer scripts to .gitea/scripts/
- Move feature-env.conf to .gitea/workflows/
- Add bats-report.sh for TAP→HTML conversion
- Update ci.yml with setup→needs→with pattern
- Add ADR 0006 directory ownership
- Document cross-job config propagation in ci-pipeline-practices.md
- Remove config.yaml, scripts/load-config.sh unused

.gitea/workflows/config-provider.yml

@@ -1,31 +0,0 @@
-name: Config Provider Library
-on:
-  workflow_call:
-    inputs:
-      config_path:
-        required: true
-        type: string
-    outputs:
-      env_json:
-        value: ${{ jobs.parse-config.outputs.json_data }}
-
-jobs:
-  parse-config:
-    runs-on: ubuntu-latest
-    outputs:
-      json_data: ${{ steps.convert.outputs.JSON_OUT }}
-    steps:
-      - uses: actions/checkout@v4
-
-      - id: convert
-        run: |
-          JSON_STRING=$(jq -R -s '
-            split("\n")
-            | map(select(length > 0 and (startswith("#") | not)))
-            | map(split("="))
-            | map({(.[0]): .[1]})
-            | add
-          ' "${{ inputs.config_path }}")
-
-          CLEAN_JSON=$(echo "$JSON_STRING" | jq -c .)
-          echo "JSON_OUT=$CLEAN_JSON" >> "$GITHUB_OUTPUT"