fix: [UIE-9487] VPC UI not displaying DBaaS resources

[smans-akamai]

Description 📝

This pull request fixes an issue in the VPC UI where DBaaS resources aren't being counted or displayed.

This issue consists of the following:

• The Resource counts shown in the VPC Landing page, VPC Details Summary, and VPC Details Subnets tables aren't including the number of databases in the count
• In the VPC Details Subnets table, the resource tables shown under each expanded Subnet don't include a databases table in addition to the pre-existing Linode and Nodebalancer tables.

Changes 🔄

List any change(s) relevant to the reviewer.

• Updating any Resource counts shown in the VPC Landing page, table, VPC Details Summary, and Subnets table to include the number of databases in the count.
• In the VPC Details Subnets table, under an expanded Subnet, display a databases table in addition to the pre-existing Linode and Nodebalancer tables.
• Introducing and integrating the new vpcDbaasResources feature flag

Scope 🚢

Upon production release, changes in this PR will be visible to:

• All customers
• Some customers (e.g. in Beta or Limited Availability)
• No customers / Not applicable

Target release date 🗓️

TBD

Preview 📷

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Before	After
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How to test 🧪

Prerequisites

(How to setup test environment)

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Reproduction steps

(How to reproduce the issue, if applicable)

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Verification steps

(How to verify changes)

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Author Checklists

As an Author, to speed up the review process, I considered 🤔

👀 Doing a self review
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➕ Adding a changeset
🧪 Providing/improving test coverage
🔐 Removing all sensitive information from the code and PR description
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👣 Providing comprehensive reproduction steps
📑 Providing or updating our documentation
🕛 Scheduling a pair reviewing session
📱 Providing mobile support
♿ Providing accessibility support

• I have read and considered all applicable items listed above.

As an Author, before moving this PR from Draft to Open, I confirmed ✅

• All tests and CI checks are passing
• TypeScript compilation succeeded without errors
• Code passes all linting rules

[linode-gh-bot]

Cloud Manager UI test results

🔺 16 failing tests on test run #2 ↗︎

❌ Failing	✅ Passing	↪️ Skipped	🕐 Duration
16 Failing	872 Passing	11 Skipped	67m 8s

Details

Failing Tests
	Spec	Test
❌	object-storage.e2e.spec.ts	Cloud Manager Cypress Tests→object storage end-to-end tests » can create and delete object storage buckets
❌	smoke-create-image.spec.ts	Cloud Manager Cypress Tests→create image (using mocks) » create image from a linode
❌	restricted-user-details-pages.spec.ts	Cloud Manager Cypress Tests→restricted user details pages » should disable action elements and buttons in the 'Images' details page
❌	rebuild-linode.spec.ts	Cloud Manager Cypress Tests→rebuild linode » rebuilds a linode from Image
❌	rebuild-linode.spec.ts	Cloud Manager Cypress Tests→rebuild linode » rebuilds a linode from Community StackScript
❌	rebuild-linode.spec.ts	Cloud Manager Cypress Tests→rebuild linode » rebuilds a linode from Account StackScript
❌	rebuild-linode.spec.ts	Cloud Manager Cypress Tests→rebuild linode » cannot rebuild a provisioning linode
❌	rebuild-linode.spec.ts	Cloud Manager Cypress Tests→rebuild linode » can rebuild a Linode reusing existing user data
❌	rebuild-linode.spec.ts	Cloud Manager Cypress Tests→rebuild linode » can rebuild a linode with the GECKO is enabled
❌	images-non-empty-landing-page.spec.ts	Cloud Manager Cypress Tests→image landing checks for non-empty state with restricted user » checks restricted user with read access has no access to create image and can see existing images
❌	create-linode-from-image.spec.ts	Cloud Manager Cypress Tests→create linode from image, mocked data » creates linode from image on images tab
❌	create-image.spec.ts	Cloud Manager Cypress Tests→create image (e2e) » create image from a linode
❌	images-empty-landing-page.spec.ts	Cloud Manager Cypress Tests→Images empty landing page » shows the empty state when there are no images
❌	images-empty-landing-page.spec.ts	Cloud Manager Cypress Tests→Images empty landing page » checks restricted user has no access to create Image on Image landing page
❌	alerts-create.spec.ts	Cloud Manager Cypress Tests→Create flow when beta alerts enabled by region and feature flag » create flow after switching to beta alerts
❌	alerts-create.spec.ts	Cloud Manager Cypress Tests→Create flow when beta alerts enabled by region and feature flag » can toggle from legacy to beta alerts and back to legacy

Troubleshooting

Use this command to re-run the failing tests:

pnpm cy:run -s "cypress/e2e/core/objectStorage/object-storage.e2e.spec.ts,cypress/e2e/core/images/smoke-create-image.spec.ts,cypress/e2e/core/account/restricted-user-details-pages.spec.ts,cypress/e2e/core/linodes/rebuild-linode.spec.ts,cypress/e2e/core/images/images-non-empty-landing-page.spec.ts,cypress/e2e/core/images/create-linode-from-image.spec.ts,cypress/e2e/core/images/create-image.spec.ts,cypress/e2e/core/images/images-empty-landing-page.spec.ts,cypress/e2e/core/linodes/alerts-create.spec.ts"