feat: Configure Codemagic workflows for multi-environment mobile app distribution

docs/prompts/create-codemagic-monorepo.md

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+Looking at the monorepo containing two separate Flutter applications in 
+- mobile-apps/client-app
+- mobile-apps/staff-app
+, and I want to configure Codemagic so both apps can be built and distributed to Firebase App Distribution.
+
+Please do the following:
+1. propose the best layout for Codemagic workflows.
+2. Create three separate pipelines for each application:
+   * Development (dev)
+   * Staging (stage)
+   * Production (prod)
+3. Each pipeline must:
+   * Build the correct Flutter app inside the monorepo.
+   * Use the correct Firebase App Distribution credentials for each environment.
+   * Push the built artifacts (Android + iOS if applicable) to the appropriate Firebase App Distribution app.
+   * Include environment-specific values (e.g., env variables, bundle IDs, keystore/certs, build flavors).
+   * Allow triggering pipelines manually.
+4. Generate a complete codemagic.yaml example with:
+   * Separate workflows for:
+      * `client_app_dev`, `client_app_staging`, `client_app_prod`
+      * `client_app_dev`, `client_app_staging`, `client_app_prod`
+   * All required steps (install Flutter/Java/Xcode, pub get, build runner if needed, building APK/AAB/IPA, uploading to Firebase App Distribution, etc.).
+   * Example Firebase App IDs, release notes, tester groups, service accounts.
+   * Proper use of Codemagic encrypted variables.
+   * Best practices for monorepo path handling.
+5. Add a short explanation of:
+   * How each pipeline works
+   * How to trigger builds
+   * How to update environment variables for Firebase
+6. Output the final result as:
+   * A complete `codemagic.yaml`
+   * A brief guide on integrating it with a monorepo
+   * Notes on debugging, caching, and CI/CD optimization
+