fix(ci): corrige runs-on dos workflows Forgejo para self-hosted

O runner Forgejo esta configurado como self-hosted, entao todos os jobs
precisam usar as labels corretas em vez de ubuntu-latest.

Alteracoes:
- ci-cd-web-desktop.yml: job changes agora usa [self-hosted, linux, vps]
- quality-checks.yml: job lint-test-build agora usa [self-hosted, linux, vps]
- docs/FORGEJO-CI-CD.md: documentacao atualizada com essa diferenca

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.forgejo/workflows/ci-cd-web-desktop.yml

@@ -24,7 +24,7 @@ env:
 jobs:
   changes:
     name: Detect changes
-    runs-on: ubuntu-latest
+    runs-on: [ self-hosted, linux, vps ]
     timeout-minutes: 5
     outputs:
       convex: ${{ steps.filter.outputs.convex }}

.forgejo/workflows/quality-checks.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   lint-test-build:
     name: Lint, Test and Build
-    runs-on: ubuntu-latest
+    runs-on: [ self-hosted, linux, vps ]
     env:
       BETTER_AUTH_SECRET: test-secret
       NEXT_PUBLIC_APP_URL: http://localhost:3000

docs/FORGEJO-CI-CD.md

@@ -137,6 +137,7 @@ Jobs:
 Os workflows do Forgejo sao quase identicos aos do GitHub Actions. Principais diferencas:
 
 1. **Localizacao:** `.forgejo/workflows/` em vez de `.github/workflows/`
+
 2. **Actions URL:** Usar `https://github.com/` prefixo nas actions
    ```yaml
    # GitHub Actions
@@ -146,7 +147,16 @@ Os workflows do Forgejo sao quase identicos aos do GitHub Actions. Principais di
    uses: https://github.com/actions/checkout@v4
    ```
 
-3. **Secrets:** Configurar em Settings > Actions > Secrets no Forgejo
+3. **runs-on:** Usar labels do self-hosted runner em vez de `ubuntu-latest`
+   ```yaml
+   # GitHub Actions (hosted runner)
+   runs-on: ubuntu-latest
+
+   # Forgejo Actions (self-hosted)
+   runs-on: [ self-hosted, linux, vps ]
+   ```
+
+4. **Secrets:** Configurar em Settings > Actions > Secrets no Forgejo
 
 ## Manutencao