fix(csv-import): Normalize source unit representation and update CI workflows

- Changed source unit representation from "kJ" to "kj" for consistency across CSV templates and migrations.
- Updated CI workflow to enhance testing conditions, ensuring tests run in the correct environment based on deployment context.
- Improved job steps for backend testing and syntax checking by utilizing deployed application directories, streamlining the CI process.

.claude/docs/working/issue-21-seed-migration-example.sql

@@ -36,9 +36,7 @@ INSERT INTO csv_field_mappings (
         },
         "kcal": {
             "type": "float",
-            "source_unit": "kJ",
-            "target_unit": "kcal",
-            "conversion_factor": 0.239,
+            "source_unit": "kj",
             "decimal_separator": ","
         },
         "fat_g": {

.gitea/workflows/test.yml

@@ -8,54 +8,83 @@ on:
     types: [completed]
 
 jobs:
-  pytest-backend-csv:
+  pytest-backend:
     if: ${{ github.event_name != 'workflow_run' || github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          # Debian 12 ARM64 runner hat fuer 3.12 oft kein setup-python Build.
-          # 3.11 ist dort breit verfuegbar und fuer unsere Tests ausreichend.
-          python-version: "3.11"
-      - name: Install dependencies
+      - name: Run backend pytest suite in deployed container
         run: |
-          pip install -r backend/requirements.txt -r backend/requirements-dev.txt
-      - name: Pytest — CSV-Import & Parser (Smoke)
-        run: |
-          cd backend
-          python -m pytest tests/test_csv_parser_core.py tests/test_csv_import_executor.py tests/test_mapping_suggest.py -q --tb=short
+          EVENT_NAME="${{ github.event_name }}"
+          REF_NAME="${{ github.ref_name }}"
+          RUN_WORKFLOW="${{ github.event.workflow_run.name }}"
+          APP_DIR="/home/lars/docker/bodytrack"
+          COMPOSE_FILE="docker-compose.yml"
+
+          if [ "$EVENT_NAME" = "workflow_run" ]; then
+            if [ "$RUN_WORKFLOW" = "Deploy Development" ]; then
+              APP_DIR="/home/lars/docker/bodytrack-dev"
+              COMPOSE_FILE="docker-compose.dev-env.yml"
+            fi
+          elif [ "$REF_NAME" = "develop" ]; then
+            APP_DIR="/home/lars/docker/bodytrack-dev"
+            COMPOSE_FILE="docker-compose.dev-env.yml"
+          fi
+
+          cd "$APP_DIR"
+          docker compose -f "$COMPOSE_FILE" exec -T backend sh -lc "
+            pip install -r /app/requirements-dev.txt &&
+            cd /app &&
+            python -m pytest \
+              tests/test_csv_parser_core.py \
+              tests/test_csv_import_executor.py \
+              tests/test_mapping_suggest.py \
+              tests/test_placeholder_metadata.py \
+              tests/test_placeholder_metadata_v2.py \
+              -q --tb=short
+          "
 
   lint-backend:
     if: ${{ github.event_name != 'workflow_run' || github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.11"
-      - name: Check backend syntax
+      - name: Check backend syntax on deployed app
         run: |
-          python -m py_compile backend/main.py
+          EVENT_NAME="${{ github.event_name }}"
+          REF_NAME="${{ github.ref_name }}"
+          RUN_WORKFLOW="${{ github.event.workflow_run.name }}"
+          APP_DIR="/home/lars/docker/bodytrack"
+
+          if [ "$EVENT_NAME" = "workflow_run" ]; then
+            if [ "$RUN_WORKFLOW" = "Deploy Development" ]; then
+              APP_DIR="/home/lars/docker/bodytrack-dev"
+            fi
+          elif [ "$REF_NAME" = "develop" ]; then
+            APP_DIR="/home/lars/docker/bodytrack-dev"
+          fi
+
+          python3 -m py_compile "$APP_DIR/backend/main.py"
           echo "✓ Backend syntax OK"
 
   build-frontend:
     if: ${{ github.event_name != 'workflow_run' || github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Set up Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: "20"
-      - name: Build frontend
+      - name: Build frontend on deployed app
         run: |
-          cd frontend
+          EVENT_NAME="${{ github.event_name }}"
+          REF_NAME="${{ github.ref_name }}"
+          RUN_WORKFLOW="${{ github.event.workflow_run.name }}"
+          APP_DIR="/home/lars/docker/bodytrack"
+
+          if [ "$EVENT_NAME" = "workflow_run" ]; then
+            if [ "$RUN_WORKFLOW" = "Deploy Development" ]; then
+              APP_DIR="/home/lars/docker/bodytrack-dev"
+            fi
+          elif [ "$REF_NAME" = "develop" ]; then
+            APP_DIR="/home/lars/docker/bodytrack-dev"
+          fi
+
+          cd "$APP_DIR/frontend"
           npm install
           npm run build
           echo "✓ Frontend build OK"

backend/migrations/043_csv_parser_seed_templates.sql

@@ -31,9 +31,7 @@ SELECT
         },
         "kcal": {
             "type": "float",
-            "source_unit": "kJ",
-            "target_unit": "kcal",
-            "conversion_factor": 0.239,
+            "source_unit": "kj",
             "decimal_separator": ","
         },
         "fat_g": {"type": "float", "decimal_separator": ","},

backend/migrations/046_csv_fddb_kcal_type_conversions_cleanup.sql

@@ -0,0 +1,19 @@
+-- Migration 046: FDDB-Systemvorlage — kcal ohne legacy conversion_factor/target_unit (Issue #21, source_unit-Registry)
+-- Doppelte Umrechnung (kj-Faktor * 0.239) wurde fälschlich gespeichert; target_unit ist nur für duration vorgesehen.
+
+UPDATE csv_field_mappings
+SET type_conversions = jsonb_set(
+    type_conversions,
+    '{kcal}',
+    ((type_conversions->'kcal') - 'conversion_factor' - 'target_unit')
+        || jsonb_build_object('source_unit', 'kj')
+)
+WHERE is_system = true
+  AND profile_id IS NULL
+  AND module = 'nutrition'
+  AND mapping_name = 'FDDB Export (Standard)'
+  AND (type_conversions->'kcal') IS NOT NULL
+  AND (
+      (type_conversions->'kcal') ? 'conversion_factor'
+      OR (type_conversions->'kcal') ? 'target_unit'
+  );

frontend/src/pages/AdminCsvTemplateEditorPage.jsx

@@ -182,7 +182,11 @@ export default function AdminCsvTemplateEditorPage() {
     const opts = modMeta?.fields?.[fieldKey]?.source_unit_options || []
     const canonical = opts.find((o) => o.is_canonical)?.id || opts[0]?.id
     const su = tc[fieldKey]?.source_unit
-    if (su && opts.some((o) => o.id === su)) return su
+    if (su != null && su !== '') {
+      const sid = String(su).toLowerCase()
+      const hit = opts.find((o) => o.id === sid)
+      if (hit) return hit.id
+    }
     return canonical || ''
   }
 
@@ -205,6 +209,8 @@ export default function AdminCsvTemplateEditorPage() {
     } else {
       base.source_unit = sourceUnitId
     }
+    delete base.target_unit
+    delete base.conversion_factor
     tc[fieldKey] = base
     setTypeConversionsText(JSON.stringify(tc, null, 2))
     setError(null)
@@ -586,7 +592,9 @@ export default function AdminCsvTemplateEditorPage() {
           <div className="form-label">3b. Quelleinheit (optional)</div>
           <p style={{ fontSize: 13, color: 'var(--text2)', marginTop: 8, lineHeight: 1.55 }}>
             Ziel-Einheit kommt aus dem Datenmodell (z. B. kcal, g, kg, km). Hier nur angeben, falls die CSV
-            abweicht (z. B. FDDB kJ → kcal, Makros in kg → g, Gewicht in lb → kg).
+            abweicht (z. B. FDDB kJ → kcal, Makros in kg → g, Gewicht in lb → kg). Beim Ändern hier werden
+            pro Feld <code>conversion_factor</code> und <code>target_unit</code> entfernt (verhindert
+            Doppel-Umrechnung); bei Bedarf wieder in Abschnitt 4 ergänzen.
           </p>
           <div style={{ marginTop: 14, display: 'flex', flexDirection: 'column', gap: 12 }}>
             {unitTargets.map(({ field: fkey, options }) => (