fix(ci): correct workflow branch targets from main to master

All three GitHub Actions workflows (CI, E2E, Deploy) referenced
branches: [main] but the repository default branch is master.
This meant CI never triggered on pushes or PRs to master.

- ci.yml: push/PR triggers → master
- e2e.yml: push/PR triggers → master
- deploy.yml: push trigger + latest tag condition → master

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [main]
+    branches: [master]
   pull_request:
-    branches: [main]
+    branches: [master]
 
 concurrency:
   group: ci-${{ github.ref }}

.github/workflows/deploy.yml

@@ -2,7 +2,7 @@ name: Deploy
 
 on:
   push:
-    branches: [main]
+    branches: [master]
   workflow_dispatch:
     inputs:
       environment:
@@ -52,7 +52,7 @@ jobs:
           tags: |
             type=sha,prefix=
             type=ref,event=branch
-            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/master' }}
 
       - name: Build and push API image
         uses: docker/build-push-action@v6
@@ -94,7 +94,7 @@ jobs:
           tags: |
             type=sha,prefix=
             type=ref,event=branch
-            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/master' }}
 
       - name: Build and push Web image
         uses: docker/build-push-action@v6
@@ -136,7 +136,7 @@ jobs:
           tags: |
             type=sha,prefix=
             type=ref,event=branch
-            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/master' }}
 
       - name: Build and push AI Services image
         uses: docker/build-push-action@v6

.github/workflows/e2e.yml

@@ -2,9 +2,9 @@ name: E2E Tests
 
 on:
   push:
-    branches: [main]
+    branches: [master]
   pull_request:
-    branches: [main]
+    branches: [master]
 
 concurrency:
   group: e2e-${{ github.ref }}