db(couchdb): auto-provision databases on startup for production strategy; add TokenService with CouchDB-backed token storage and localStorage fallback; switch OAuth to unified config for client IDs and redirect URI; express Request typing for req.user; align exportAsEnvVars with show-config expectations; remove Vite importmap from index.html; prefer babel-jest over ts-jest; remove duplicate uuid mocking from Jest config

jest.config.json

@@ -1,5 +1,4 @@
 {
-  "preset": "ts-jest",
   "testEnvironment": "jsdom",
   "setupFilesAfterEnv": ["<rootDir>/tests/setup.ts"],
   "testMatch": [
@@ -23,11 +22,10 @@
   "coverageReporters": ["text", "lcov", "html"],
   "moduleNameMapper": {
     "^@/(.*)$": "<rootDir>/$1",
-    "^uuid$": "<rootDir>/tests/__mocks__/uuid.js",
     "^node-fetch$": "<rootDir>/tests/__mocks__/node-fetch.js"
   },
   "transform": {
-    "^.+\\.tsx?$": "ts-jest",
+    "^.+\\.tsx?$": "babel-jest",
     "^.+\\.jsx?$": "babel-jest"
   },
   "transformIgnorePatterns": ["node_modules/(?!(@jest/transform|uuid|node-fetch)/)"],