feat: i18n 10 languages + About section + deploy fix

.github/CONTRIBUTING.md

@@ -398,6 +398,35 @@ Kontakt: `security@<your-domain>` oder GitHub Security Advisory
 
 ---
 
+## 🌍 Translations (i18n)
+
+OpenCloudTouch uses [react-i18next](https://react.i18next.com/) for internationalization.
+See [docs/adr/007-i18n.md](../docs/adr/007-i18n.md) for the full library decision.
+
+### Source of Truth
+
+**`apps/frontend/src/i18n/locales/en.json` is the single source of truth for all UI strings.**
+
+Rules:
+- Every user-visible string MUST exist in `en.json` before it appears in any component
+- German translation lives in `de.json` and must be kept in sync
+- New strings go to `en.json` first, then are translated in `de.json` (and any other locale)
+- Never hardcode English text directly in components — always use `t("key")`
+
+### Adding a new UI string
+
+1. Add the key to `apps/frontend/src/i18n/locales/en.json`
+2. Add the German translation to `apps/frontend/src/i18n/locales/de.json`
+3. Add translations for any other supported locales (`fr.json`, `it.json`, …)
+4. Use `const { t } = useTranslation()` + `t("your.new.key")` in the component
+
+### Contributing a new language
+
+Use the **[Translation Contribution](https://github.com/scheilch/opencloudtouch/issues/new?template=translation_contribution.yml)** issue template.
+You do not need to open a PR — paste your translated JSON into the issue and a maintainer will create the locale file.
+
+---
+
 ## 📚 Dokumentation
 
 Bei Code-Änderungen bitte auch Doku aktualisieren:

.github/ISSUE_TEMPLATE/translation_contribution.yml

@@ -0,0 +1,61 @@
+name: "Translation Contribution: [Language]"
+description: Contribute translations for a new or existing language
+title: "Translation Contribution: [Language]"
+labels: ["i18n", "help wanted"]
+body:
+  - type: input
+    id: language_name
+    attributes:
+      label: Language Name
+      description: The full English name of the language (e.g. "Spanish", "French")
+      placeholder: "e.g. Spanish"
+    validations:
+      required: true
+
+  - type: input
+    id: locale_code
+    attributes:
+      label: Locale Code (ISO 639-1)
+      description: The 2-letter ISO 639-1 code for the language
+      placeholder: "e.g. es"
+    validations:
+      required: true
+
+  - type: input
+    id: completeness
+    attributes:
+      label: Completeness (%)
+      description: Approximately what percentage of keys are translated?
+      placeholder: "e.g. 100"
+    validations:
+      required: true
+
+  - type: textarea
+    id: translations
+    attributes:
+      label: Translated en.json snippet
+      description: >
+        Paste your translated JSON matching the structure of
+        `apps/frontend/src/i18n/locales/en.json`. You can provide a full
+        translation or a partial one — mark missing values with the English
+        string.
+      render: json
+      placeholder: |
+        {
+          "common": {
+            "save": "Guardar",
+            "cancel": "Cancelar"
+          }
+        }
+    validations:
+      required: true
+
+  - type: textarea
+    id: notes
+    attributes:
+      label: Notes
+      description: >
+        Any additional notes, regional variants, or open questions about the
+        translation (optional).
+    validations:
+      required: false

.github/workflows/ci.yml

@@ -10,10 +10,11 @@ name: CI
 on:
   push:
     branches:
-      - '**'
+      - main
+
   pull_request:
-    branches:
-      - '**'
+    types: [opened, synchronize, reopened]
+
   workflow_dispatch:
 
 jobs:
@@ -180,7 +181,9 @@ jobs:
         if: always()
         with:
           name: backend-coverage
-          path: .out/coverage/backend/coverage.json
+          path: |
+            .out/coverage/backend/coverage.json
+            .out/coverage/backend/coverage.xml
           retention-days: 1
 
   # ============================================================================
@@ -225,7 +228,9 @@ jobs:
         if: always()
         with:
           name: frontend-coverage
-          path: .out/coverage/frontend/coverage-summary.json
+          path: |
+            .out/coverage/frontend/coverage-summary.json
+            .out/coverage/frontend/lcov.info
           retention-days: 1
 
   # ============================================================================

.github/workflows/sonar.yml

@@ -3,10 +3,11 @@ on:
   push:
     branches:
       - main
-  pull_request:
-    types: [opened, synchronize, reopened]
   schedule:
     - cron: '0 6 * * 1'  # Every Monday 6:00 UTC
+  # NOTE: PR analysis is handled by the sonar job in ci.yml (which uses
+  # pre-built coverage artifacts). Do NOT add pull_request trigger here
+  # — it would create a competing scan that overwrites coverage results.
 jobs:
   sonarqube:
     name: SonarQube

apps/backend/openapi.yaml

@@ -2531,6 +2531,42 @@ paths:
           content:
             application/json:
               schema: {}
+  /api/logs/backend:
+    get:
+      tags:
+        - logs
+      summary: Download Backend Log
+      description: Returns the in-memory backend log as a plain-text file download.
+      operationId: download_backend_log_api_logs_backend_get
+      responses:
+        '200':
+          description: Plain-text log file download
+          content:
+            text/plain:
+              schema:
+                type: string
+  /api/bug-report:
+    post:
+      tags:
+        - bug-report
+      summary: Submit Bug Report
+      description: Submit a bug report that creates a GitHub issue with diagnostic data.
+      operationId: submit_bug_report_api_bug_report_post
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/BugReportRequest'
+      responses:
+        '200':
+          description: Bug report submitted successfully
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/BugReportResponse'
+        '503':
+          description: GitHub token not configured
 components:
   schemas:
     BackupRequest:
@@ -2570,6 +2606,50 @@ components:
       - message
       title: BackupResponse
       description: Response with backup results.
+    BugReportRequest:
+      type: object
+      required:
+        - description
+        - steps_to_reproduce
+        - expected_behavior
+        - installation_type
+        - hardware
+      properties:
+        description:
+          type: string
+          minLength: 20
+        steps_to_reproduce:
+          type: string
+          minLength: 10
+        expected_behavior:
+          type: string
+          minLength: 10
+        installation_type:
+          type: string
+        hardware:
+          type: string
+        soundtouch_devices:
+          type: array
+          items:
+            type: string
+          default: []
+        other_installation:
+          type: string
+          default: ''
+        other_hardware:
+          type: string
+          default: ''
+      title: BugReportRequest
+    BugReportResponse:
+      type: object
+      properties:
+        issue_url:
+          type: string
+        issue_number:
+          type: integer
+        message:
+          type: string
+      title: BugReportResponse
     Body_set_mute_api_devices__device_id__mute_put:
       properties:
         muted: