refactor: reorganize GitHub workflows with consistent naming convention

- Implement systematic naming convention using category prefixes
- Group workflows logically: ci-, pr-, release-, types-, i18n-
- Rename all 22 workflows for better organization and discoverability
- Update workflow cross-references and display names
- Add comprehensive README.md with naming guidelines and best practices

Key changes:
- CI workflows: ci-tests-e2e, ci-tests-unit, ci-tests-storybook, etc.
- PR automation: pr-backport, pr-claude-review, pr-playwright-snapshots
- Release management: release-version-bump, release-npm-types, etc.
- Type generation: types-registry-api, types-manager-api, etc.
- Internationalization: i18n-update-core, i18n-update-nodes, etc.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/ci-tests-unit.yaml

@@ -0,0 +1,44 @@
+name: Tests Unit CI
+
+on:
+  push:
+    branches: [main, master, dev*, core/*, desktop/*]
+  pull_request:
+    branches-ignore: [wip/*, draft/*, temp/*]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "lts/*"
+          cache: "pnpm"
+
+      - name: Cache tool outputs
+        uses: actions/cache@v4
+        with:
+          path: |
+            .cache
+            coverage
+            .vitest-cache
+          key: vitest-cache-${{ runner.os }}-${{ hashFiles('**/pnpm-lock.yaml') }}-${{ hashFiles('src/**/*.{ts,vue,js}', 'vitest.config.*', 'tsconfig.json') }}
+          restore-keys: |
+            vitest-cache-${{ runner.os }}-${{ hashFiles('**/pnpm-lock.yaml') }}-
+            vitest-cache-${{ runner.os }}-
+            test-tools-cache-${{ runner.os }}-
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Run Vitest tests
+        run: pnpm test:unit