Migrate Aliyun Database Resources (RDS & ES Serverless) to state-based management engine

[Copilot]

This pull request adds support for managing Alibaba Cloud RDS (Relational Database Service) and ES (Elasticsearch Serverless) resources in the codebase. It introduces new client initializations, operation modules, and type definitions for both services, and updates ESLint and dependencies accordingly.

New Alibaba Cloud service support:

• Added @alicloud/rds20140815 and @alicloud/es-serverless20230627 dependencies to package.json to enable RDS and ES Serverless operations.
• Initialized RdsClient and EsServerlessClient in src/common/aliyunClient/index.ts, including endpoint configuration and exporting their operation creators. [1] [2] [3] [4] [5]

New operation modules:

• Added src/common/aliyunClient/rdsOperations.ts to provide functions for creating, retrieving, updating, and deleting RDS instances, with status polling and error handling.
• Added src/common/aliyunClient/esOperations.ts to provide similar CRUD operations for ES Serverless applications, including status polling and error handling.

Code quality improvements:

• Enabled the ESLint rule @typescript-eslint/no-unused-vars with exceptions for variables prefixed with _, improving code cleanliness without breaking convention for intentionally unused variables.
• Removed an unnecessary ESLint disable comment in src/common/stateManager.ts for cleaner code.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[MIGRATION] Migrate Aliyun Database Resources to Terraform-like State Engine</issue_title>
<issue_description>## Summary
Migrate Aliyun database resources (RDS Serverless, Elasticsearch Serverless) from ROS template-based deployment to the unified Terraform-like state management engine.

Background

Currently, Aliyun databases are managed via ROS CDK constructs in src/stack/rosStack/database.ts. This must now be migrated to a new architecture based on state management with strict separation of provider-agnostic and provider-specific logic.

Updated Architecture

┌─────────────────────────────────────────┐
│   Resource / Planner / Executor Layer   │  ← Provider-agnostic business logic
│   (Pure functions, no SDK imports)      │
└─────────────────────────────────────────┘
                    ↓
┌─────────────────────────────────────────┐
│         Functional Client Layer         │  ← Encapsulated SDK operations
│   (aliyunClient.ts, tencentClient.ts)  │
└─────────────────────────────────────────┘
                    ↓
┌─────────────────────────────────────────┐
│        Cloud Provider SDKs              │  ← @alicloud/*, tencentcloud-*
└─────────────────────────────────────────┘

• Resource/Planner/Executor Layer: Pure, provider-agnostic business logic for resources, drift/planning, execution. No direct SDK import or cloud-specific code. (See: databaseResource.ts, databasePlanner.ts, databaseExecutor.ts)
• Functional Client Layer: Encapsulates all SDK operations. E.g. aliyunClient.ts abstracts Aliyun API/SDK calls for RDS, ES, etc. This is the only layer with cloud SDK imports or API calls. New functional clients must be implemented for supported clouds.
• Cloud Provider SDKs: External dependencies such as @alicloud/ros-cdk-rds, @alicloud/ros-cdk-elasticsearch-serverless, tencentcloud-* SDKs, etc.

Current Implementation (to be migrated)

• File: src/stack/rosStack/database.ts
• Supports: RDS MySQL/PostgreSQL/MSSQL Serverless, Elasticsearch Serverless
• Uses @alicloud/ros-cdk-rds, @alicloud/ros-cdk-elasticsearch-serverless

Target Implementation

Create new modules under src/stack/aliyunStack/ as per new architecture:

• Client: aliyunClient.ts
• Types: rdsTypes.ts, esServerlessTypes.ts
• Resource: databaseResource.ts
• Planner: databasePlanner.ts
• Executor: databaseExecutor.ts

Requirements

1. RDS Serverless Functional Client

export const createRdsInstance = async (context:  Context, config: RdsConfig): Promise<string>
export const getRdsInstance = async (context:  Context, instanceId: string): Promise<RdsInfo | null>
export const updateRdsInstance = async (context: Context, instanceId: string, config: RdsConfig): Promise<void>
export const deleteRdsInstance = async (context: Context, instanceId: string): Promise<void>

2. Elasticsearch Serverless Functional Client

export const createEsApp = async (context:  Context, config: EsConfig): Promise<string>
export const getEsApp = async (context:  Context, appId:  string): Promise<EsInfo | null>
export const updateEsApp = async (context: Context, appId: string, config:  EsConfig): Promise<void>
export const deleteEsApp = async (context: Context, appId: string): Promise<void>

3. Handle Features

• RDS Serverless: MySQL 5.7/8.0, PostgreSQL 14/15/16, MSSQL 2016-2019
• Elasticsearch Serverless with basic auth
• Auto-scaling configuration (min/max CU)
• Storage configuration
• Network/VPC settings

4. State Types

Add to ResourceTypeEnum:

• ALIYUN_RDS_SERVERLESS
• ALIYUN_ES_SERVERLESS

Acceptance Criteria

• RDS Serverless instances can be managed via state
• Elasticsearch Serverless apps can be managed via state
• Configuration changes trigger proper updates
• Drift detection works for database resources

References

• Current ROS implementation: src/stack/rosStack/database.ts
• Tencent TDSQL-C pattern: src/stack/scfStack/tdsqlcPlanner.ts
• See more architecture discussion in the documentation or RFCs.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [MIGRATION] Migrate Aliyun Database Resources to Terraform-like State Engine #130

---

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[codecov]

Codecov Report

❌ Patch coverage is 20.76190% with 416 lines in your changes missing coverage. Please review.
✅ Project coverage is 47.31%. Comparing base (2edb344) to head (bf2373c).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/stack/aliyunStack/databaseResource.ts	7.24%	128 Missing ⚠️
src/common/aliyunClient/esOperations.ts	12.64%	76 Missing ⚠️
src/common/aliyunClient/rdsOperations.ts	11.62%	76 Missing ⚠️
src/stack/aliyunStack/databasePlanner.ts	13.84%	56 Missing ⚠️
src/stack/aliyunStack/databaseExecutor.ts	7.14%	52 Missing ⚠️
src/stack/aliyunStack/esServerlessTypes.ts	58.33%	0 Missing and 20 partials ⚠️
src/common/aliyunClient/index.ts	50.00%	6 Missing ⚠️
src/stack/aliyunStack/rdsTypes.ts	92.30%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #146      +/-   ##
==========================================
- Coverage   50.84%   47.31%   -3.54%     
==========================================
  Files         126      133       +7     
  Lines        3943     4468     +525     
  Branches      989     1176     +187     
==========================================
+ Hits         2005     2114     +109     
- Misses       1730     2124     +394     
- Partials      208      230      +22     

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[Blankll]

review feedback;

• types need to follow existing pattern as comalCase eg. MasterUsername -> masterUsername
• use enum to replace string hardcode comparason
• logger message should support multi-langaunge rather than hardcode

[Copilot]

review feedback;

• types need to follow existing pattern as comalCase eg. MasterUsername -> masterUsername
• use enum to replace string hardcode comparason
  ...

All feedback addressed in commits a8fab9f and 72ddd6f:

1. Types use camelCase - Converted all properties from PascalCase to camelCase following Aliyun client pattern (e.g., dbInstanceId, engineVersion, serverlessConfig)

2. Enums for string comparisons - Added RdsInstanceStatus and EsAppStatus enums:

if (instance.dbInstanceStatus === RdsInstanceStatus.RUNNING) { ... }
if (app.status === EsAppStatus.ACTIVE) { ... }

3. Multi-language support - Replaced all hardcoded logger messages with lang.__():

• Added 11 RDS message keys (e.g., RDS_INSTANCE_READY, RDS_INSTANCE_WAITING)
• Added 17 ES message keys (e.g., ES_APP_CREATION_INITIATED, ES_APP_READY)
• Full English and Chinese translations in en.ts and zh-CN.ts

Build ✅ | Lint ✅ | Tests ✅ (407/408 passing)