chore: remove mobile/ from monorepo, suspend CI mobile job

* chore: update exchange submodule to pex.network release + add shared images

Exchange submodule advanced to include:
- sweeper.js: TRC-20 JWT Bearer auth, DOT transferAll, PEZ-AH pre-fund
- docker-compose.yml: pex.network defaults for VITE_API_BASE_URL and SMTP_FROM
- .github/workflows/build-deploy.yml: pex.network build arg for web service

Shared images added: keziyakurd, kiwi_perwerde, kurdistan_assembly, pezkuwi, satoshi_qazi_muh

* chore: remove mobile/ from monorepo, suspend CI mobile job

Mobile app moved to /home/mamostehp/pwap-mobile (local, suspended).
Will be re-integrated when mobile development resumes.

- Removed mobile/ directory entirely
- Removed Mobile App job from quality-gate.yml so CI no longer blocks

mobile/babel.config.cjs

@@ -1,16 +0,0 @@
-module.exports = function (api) {
-  api.cache(true);
-  return {
-    presets: [
-      [
-        'babel-preset-expo',
-        {
-          unstable_transformImportMeta: true,
-        },
-      ],
-    ],
-    plugins: [
-      '@babel/plugin-transform-class-static-block',
-    ],
-  };
-};