chore: reproducible pipeline with dev containers (#10305)

# Which Problems Are Solved

- The previous monorepo in monorepo structure for the login app and its
related packages was fragmented, complicated and buggy.
- The process for building and testing the login container was
inconsistent between local development and CI.
- Lack of clear documentation as well as easy and reliable ways for
non-frontend developers to reproduce and fix failing PR checks locally.

# How the Problems Are Solved

- Consolidated the login app and its related npm packages by moving the
main package to `apps/login/apps/login` and merging
`apps/login/packages/integration` and `apps/login/packages/acceptance`
into the main `apps/login` package.
- Migrated from Docker Compose-based test setups to dev container-based
setups, adding support for multiple dev container configurations:
  - `.devcontainer/base`
  - `.devcontainer/turbo-lint-unit`
  - `.devcontainer/turbo-lint-unit-debug`
  - `.devcontainer/login-integration`
  - `.devcontainer/login-integration-debug`
- Added npm scripts to run the new dev container setups, enabling exact
reproduction of GitHub PR checks locally, and updated the pipeline to
use these containers.
- Cleaned up Dockerfiles and docker-bake.hcl files to only build the
production image for the login app.
- Cleaned up compose files to focus on dev environments in dev
containers.
- Updated `CONTRIBUTING.md` with guidance on running and debugging PR
checks locally using the new dev container approach.
- Introduced separate Dockerfiles for the login app to distinguish
between using published client packages and building clients from local
protos.
- Ensured the login container is always built in the pipeline for use in
integration and acceptance tests.
- Updated Makefile and GitHub Actions workflows to use
`--frozen-lockfile` for installing pnpm packages, ensuring reproducible
installs.
- Disabled GitHub release creation by the changeset action.
- Refactored the `/build` directory structure for clarity and
maintainability.
- Added a `clean` command to `docks/package.json`.
- Experimentally added `knip` to the `zitadel-client` package for
improved linting of dependencies and exports.

# Additional Changes

- Fixed Makefile commands for consistency and reliability.
- Improved the structure and clarity of the `/build` directory to
support seamless integration of the login build.
- Enhanced documentation and developer experience for running and
debugging CI checks locally.

# Additional Context

- See updated `CONTRIBUTING.md` for new local development and debugging
instructions.
- These changes are a prerequisite for further improvements to the CI
pipeline and local development workflow.
- Closes #10276

packages/zitadel-client/package.json

@@ -0,0 +1,73 @@
+{
+  "name": "@zitadel/client",
+  "version": "1.2.0",
+  "license": "MIT",
+  "publishConfig": {
+    "access": "public"
+  },
+  "type": "module",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js",
+      "require": "./dist/index.cjs"
+    },
+    "./v1": {
+      "types": "./dist/v1.d.ts",
+      "import": "./dist/v1.js",
+      "require": "./dist/v1.cjs"
+    },
+    "./v2": {
+      "types": "./dist/v2.d.ts",
+      "import": "./dist/v2.js",
+      "require": "./dist/v2.cjs"
+    },
+    "./v3alpha": {
+      "types": "./dist/v3alpha.d.ts",
+      "import": "./dist/v3alpha.js",
+      "require": "./dist/v3alpha.cjs"
+    },
+    "./node": {
+      "types": "./dist/node.d.ts",
+      "import": "./dist/node.js",
+      "require": "./dist/node.cjs"
+    },
+    "./web": {
+      "types": "./dist/web.d.ts",
+      "import": "./dist/web.js",
+      "require": "./dist/web.cjs"
+    }
+  },
+  "files": [
+    "dist/**"
+  ],
+  "sideEffects": false,
+  "scripts": {
+    "build": "tsup",
+    "lint": "pnpm run '/^lint:check:.*$/'",
+    "lint:check:eslint": "eslint 'src/**/*.ts*'",
+    "lint:check:knip": "knip",
+    "test:unit": "vitest --run",
+    "clean": "rm -rf .turbo && rm -rf node_modules && rm -rf dist"
+  },
+  "dependencies": {
+    "@bufbuild/protobuf": "^2.2.2",
+    "@connectrpc/connect": "^2.0.0",
+    "@connectrpc/connect-node": "^2.0.0",
+    "@connectrpc/connect-web": "^2.0.0",
+    "@zitadel/proto": "latest",
+    "jose": "^5.3.0"
+  },
+  "devDependencies": {
+    "@bufbuild/protocompile": "^0.0.1",
+    "@bufbuild/buf": "^1.53.0",
+    "@types/node": "^24.0.14",
+    "@typescript-eslint/eslint-plugin": "^8.15.0",
+    "@typescript-eslint/parser": "^8.15.0",
+    "eslint": "^8.57.0",
+    "knip": "^5.61.3",
+    "tsup": "^8.4.0",
+    "typescript": "^5.8.3",
+    "vitest": "^2.0.0"
+  }
+}