Update CI/CD workflows to use self-hosted runners

Changed all workflow files from ubuntu-latest to self-hosted runners to match deployment environment requirements.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.forgejo/workflows/ci.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   lint:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: Lint Code
     
     steps:
@@ -28,7 +28,7 @@ jobs:
         run: npm run lint
         
   type-check:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: TypeScript Type Check
     
     steps:
@@ -48,7 +48,7 @@ jobs:
         run: npx tsc --noEmit
         
   test:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: Run Tests
     
     strategy:
@@ -79,7 +79,7 @@ jobs:
           path: coverage/
           
   build:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: Build Project
     
     steps:
@@ -120,7 +120,7 @@ jobs:
           echo "✅ All build outputs verified!"
           
   security:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: Security Checks
     
     steps:
@@ -152,7 +152,7 @@ jobs:
           echo "✅ No hardcoded secrets found"
           
   validate-i18n:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: Validate i18n Files
     
     steps:

.forgejo/workflows/code-quality.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   code-quality:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: Code Quality Checks
     
     steps:

.forgejo/workflows/dependency-review.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   dependency-review:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: Review Dependencies
     
     steps:

.forgejo/workflows/pr-labeler.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   label:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: Label Pull Request
     
     steps:

.forgejo/workflows/release.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   release:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     name: Create Release
     
     steps: