ci: change all workflows to manual trigger only (workflow_dispatch)

Updated workflows to use workflow_dispatch instead of pull_request/push:

- backend-foundation.yml: Removed pull_request and push triggers

- mobile-ci.yml: Removed pull_request and push triggers with path filters

- web-quality.yml: Removed pull_request and push triggers

Workflows now only run manually via Actions tab. This gives more control over when CI runs and reduces unnecessary workflow executions.

.github/workflows/backend-foundation.yml

@@ -1,14 +1,7 @@
 name: Backend Foundation
 
 on:
-  pull_request:
-    branches:
-      - dev
-      - main
-  push:
-    branches:
-      - dev
-      - main
+  workflow_dispatch:
 
 jobs:
   backend-foundation-makefile:

.github/workflows/mobile-ci.yml

@@ -1,16 +1,7 @@
 name: Mobile CI
 
 on:
-  pull_request:
-    paths:
-      - 'apps/mobile/**'
-      - '.github/workflows/mobile-ci.yml'
-  push:
-    branches:
-      - main
-    paths:
-      - 'apps/mobile/**'
-      - '.github/workflows/mobile-ci.yml'
+  workflow_dispatch:
 
 jobs:
   detect-changes:

.github/workflows/web-quality.yml

@@ -1,14 +1,7 @@
 name: Web Quality
 
 on:
-  pull_request:
-    branches:
-      - dev
-      - main
-  push:
-    branches:
-      - dev
-      - main
+  workflow_dispatch:
 
 jobs:
   web-quality: