test(web): add Vitest CI, ADRs, and PR Definition of Done

FE unit-тесты селекторов/api-client в CI; ADR по durable jobs, OpenAPI codegen и legacy Svelte; PR template WEB-19; процесс KPI cross-app sync.

Co-authored-by: Cursor <[email protected]>

.gitea/workflows/ci.yaml

@@ -180,12 +180,13 @@ jobs:
           node-version: "22"
       - name: Enable pnpm via corepack
         run: corepack enable
-      - name: pnpm install, typecheck, lint, build
+      - name: pnpm install, typecheck, lint, test, build
         run: |
           set -euxo pipefail
           pnpm install --frozen-lockfile
           pnpm --filter @evobgp/web run typecheck
           pnpm --filter @evobgp/web run lint
+          pnpm --filter @evobgp/web run test
           pnpm --filter @evobgp/web run build
 
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