feat: extract MySQL/MariaDB monitor to its own monitor-type and enable support conditions

[eureka0928]

📝 Summary of changes done and why they are done

• Extract MySQL/MariaDB monitor from monitor.js to its own monitor-type file (server/monitor-types/mysql.js)
• Add conditions support with result variable for query result validation
• Enable monitoring of MariaDB SQL results (replication status, health checks, custom queries)
• Add tests using MariaDB testcontainer

📋 Related issues

• Relates to Monitor Mariadb SQL results #6316
• Resolves Monitor Mariadb SQL results #6316

📄 Checklist

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• ⚠️ If there are Breaking change (a fix or feature that alters existing functionality in a way that could cause issues) I have called them out
• 🧠 I have disclosed any use of LLMs/AI in this contribution and reviewed all generated content.
  I understand that I am responsible for and able to explain every line of code I submit.
• 🔍 My code adheres to the style guidelines of this project.
• ⚠️ My changes generate no new warnings.
• 🛠️ I have reviewed and tested my code.
• 📝 I have commented my code, especially in hard-to-understand areas (e.g., using JSDoc for methods).
• 🤖 I added or updated automated tests where appropriate.
• 📄 Documentation updates are included (if applicable).
• 🔒 I have considered potential security impacts and mitigated risks.
• 🧰 Dependency updates are listed and explained.

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Contribution by Gittensor, see my contribution statistics at https://gittensor.io/miners/details?githubId=42954461

[eureka0928]

Hi @CommanderStorm would you review this PR? this was easy as you shared the reference PR and guide

[CommanderStorm]

Really nice work, there are two things which I apparently did not notice during the sqlserver PR. Both are super simple to fix.

Could you maybe also fix them for the sqlserver impl since they are both extremely simple to fix

[eureka0928]

Really nice work, there are two things which I apparently did not notice during the sqlserver PR. Both are super simple to fix.

Could you maybe also fix them for the sqlserver impl since they are both extremely simple to fix

Would you review my update for mysql first? before I move to sqlserver?
Thank you for quick review and guide

[CommanderStorm]

a bit of lightly appliable diff, nothing major

[eureka0928]

@CommanderStorm finally I push the commit for mssql changes, please review again for last commit 😉
We are purging many today

[CommanderStorm]

[eureka0928]

the test fails are the another flakes... still good to merge?

Error: Command failed: npm run test-backend-20
    at genericNodeError (node:internal/errors:984:15)
    at wrappedFn (node:internal/errors:538:14)
    at checkExecSyncError (node:child_process:891:11)
    at Module.execSync (node:child_process:963:15)
    at file:///home/runner/work/uptime-kuma/uptime-kuma/test/test-backend.mjs:9:18
    at ModuleJob.run (node:internal/modules/esm/module_job:325:25)
    at async ModuleLoader.import (node:internal/modules/esm/loader:606:24)
    at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:117:5) {

[CommanderStorm]

Okay... CI is failing..

But it is in this PRs Tests, so luckily no flake.
I am going to go to bed now, automerge is enabled

    # Subtest: check() rejects when custom query result does not meet condition
    not ok 4 - check() rejects when custom query result does not meet condition
      ---
      duration_ms: 8615.04567
      location: '/home/runner/work/uptime-kuma/uptime-kuma/test/backend-test/monitors/test-mysql.js:123:9'
      failureType: 'testCodeFailure'
      error: 'Missing expected rejection (Error).'
      code: 'ERR_ASSERTION'
      name: 'AssertionError'
      expected:
      error: 'Query result did not meet the specified conditions (99)'
      stack: |-
        TestContext.<anonymous> (/home/runner/work/uptime-kuma/uptime-kuma/test/backend-test/monitors/test-mysql.js:149:21)
        process.processTicksAndRejections (node:internal/process/task_queues:95:5)
        async Test.run (node:internal/test_runner/test:797:9)
        async Suite.processPendingSubtests (node:internal/test_runner/test:526:7)
      operator: 'rejects'
      stack: |-
        process.processTicksAndRejections (node:internal/process/task_queues:95:5)
        async TestContext.<anonymous> (/home/runner/work/uptime-kuma/uptime-kuma/test/backend-test/monitors/test-mysql.js:147:17)
        async Test.run (node:internal/test_runner/test:797:9)
        async Suite.processPendingSubtests (node:internal/test_runner/test:526:7)
      ...
    1..4
not ok 9 - MySQL/MariaDB Monitor

[eureka0928]

Okay... CI is failing..

But it is in this PRs Tests, so luckily no flake. I am going to go to bed now, automerge is enabled

    # Subtest: check() rejects when custom query result does not meet condition
    not ok 4 - check() rejects when custom query result does not meet condition
      ---
      duration_ms: 8615.04567
      location: '/home/runner/work/uptime-kuma/uptime-kuma/test/backend-test/monitors/test-mysql.js:123:9'
      failureType: 'testCodeFailure'
      error: 'Missing expected rejection (Error).'
      code: 'ERR_ASSERTION'
      name: 'AssertionError'
      expected:
      error: 'Query result did not meet the specified conditions (99)'
      stack: |-
        TestContext.<anonymous> (/home/runner/work/uptime-kuma/uptime-kuma/test/backend-test/monitors/test-mysql.js:149:21)
        process.processTicksAndRejections (node:internal/process/task_queues:95:5)
        async Test.run (node:internal/test_runner/test:797:9)
        async Suite.processPendingSubtests (node:internal/test_runner/test:526:7)
      operator: 'rejects'
      stack: |-
        process.processTicksAndRejections (node:internal/process/task_queues:95:5)
        async TestContext.<anonymous> (/home/runner/work/uptime-kuma/uptime-kuma/test/backend-test/monitors/test-mysql.js:147:17)
        async Test.run (node:internal/test_runner/test:797:9)
        async Suite.processPendingSubtests (node:internal/test_runner/test:526:7)
      ...
    1..4
not ok 9 - MySQL/MariaDB Monitor

Thank you, good night!

[eureka0928]

@CommanderStorm would you enable auto merge again? I pushed the fix for testing
Sorry about this
cc: @louislam

[CommanderStorm]

This seems a bit sus, since the other instance of hasConditions in the codebase does this slightly differently.
Will need to manually verify which version is correct tomorrow.

Good night