chore: remove placeholder Azure workflows (no Infomaniak VM yet)

Co-authored-by: Cursor <cursoragent@cursor.com>

.forgejo/workflows/main_poweron-althaus-preprocess.yml

@@ -1,61 +0,0 @@
-name: Deploy althaus-preprocessing
-
-on:
-  push:
-    branches: [main]
-  workflow_dispatch:
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.13"
-
-      - name: Install uv
-        uses: https://github.com/astral-sh/setup-uv@v5
-
-      - name: Upload artifact for deployment jobs
-        uses: actions/upload-artifact@v4
-        with:
-          name: python-app
-          path: |
-            .
-            !venv/
-            !.venv/
-            !.git/
-            !.cache/
-
-  deploy:
-    runs-on: ubuntu-latest
-    needs: build
-    permissions:
-      id-token: write
-      contents: read
-
-    steps:
-      - name: Download artifact from build job
-        uses: actions/download-artifact@v4
-        with:
-          name: python-app
-
-      - name: Login to Azure (OIDC)
-        uses: https://github.com/Azure/login@v2
-        with:
-          client-id: ${{ secrets.AZUREAPPSERVICE_CLIENTID_3720212D35D047C38CEE2F365F1D81C7 }}
-          tenant-id: ${{ secrets.AZUREAPPSERVICE_TENANTID_AC3FDD6C7376466AA44A309428618439 }}
-          subscription-id: ${{ secrets.AZUREAPPSERVICE_SUBSCRIPTIONID_94A2088C685A46DFAE2BFBA50714B1DA }}
-
-      - name: Deploy to Azure Web App
-        uses: https://github.com/Azure/webapps-deploy@v3
-        with:
-          app-name: "poweron-althaus-preprocess-prod"
-          slot-name: "Production"
-          package: .

.forgejo/workflows/main_poweron-preprocessing.yml

@@ -1,61 +0,0 @@
-name: Deploy poweron-preprocessing
-
-on:
-  push:
-    branches: [main]
-  workflow_dispatch:
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.13"
-
-      - name: Install uv
-        uses: https://github.com/astral-sh/setup-uv@v5
-
-      - name: Upload artifact for deployment jobs
-        uses: actions/upload-artifact@v4
-        with:
-          name: python-app
-          path: |
-            .
-            !venv/
-            !.venv/
-            !.git/
-            !.cache/
-
-  deploy:
-    runs-on: ubuntu-latest
-    needs: build
-    permissions:
-      id-token: write
-      contents: read
-
-    steps:
-      - name: Download artifact from build job
-        uses: actions/download-artifact@v4
-        with:
-          name: python-app
-
-      - name: Login to Azure (OIDC)
-        uses: https://github.com/Azure/login@v2
-        with:
-          client-id: ${{ secrets.AZUREAPPSERVICE_CLIENTID_AA4B9998A69E4C5C8FDF357E3FEAADD5 }}
-          tenant-id: ${{ secrets.AZUREAPPSERVICE_TENANTID_CC57AD1F29D44DDA960AE3EAC6D2C27A }}
-          subscription-id: ${{ secrets.AZUREAPPSERVICE_SUBSCRIPTIONID_4CD1D97C506D403E8E284466DB4E7898 }}
-
-      - name: Deploy to Azure Web App
-        uses: https://github.com/Azure/webapps-deploy@v3
-        with:
-          app-name: "poweron-preprocessing"
-          slot-name: "Production"
-          package: .