Fix Astro DB remote builds with Cloudflare adapter

[astrobot-houston]

Changes

• Filters out Cloudflare vite plugins from the temporary Vite server created by Astro DB during astro build --remote
• Prevents the Cloudflare workerd runtime from eagerly loading the manifest placeholder and crashing with "Invalid URL string"
• Extracts a filterPluginsForTempServer() utility to handle plugin filtering for the temp server

Testing

• Added packages/db/test/unit/filter-plugins.test.ts with 7 test cases covering plugin filtering edge cases
• Full DB unit test suite (52 tests) passes with no regressions
• Fix confirmed working by issue reporter @fkatsuhiro

Docs

• No docs update needed, this is a bug fix that restores expected functionality

Closes #16738

[changeset-bot]

🦋 Changeset detected

Latest commit: 9739595

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 14 packages

Name	Type
@astrojs/db	Patch
@e2e/actions-blog	Patch
@e2e/actions-react-19	Patch
@test/db-aliases	Patch
@test/db-db-in-src	Patch
@test/error-handling	Patch
@test/db-integration-only	Patch
@test/db-integration	Patch
@test/db-libsql-remote	Patch
@test/db-local-prod	Patch
@test/db-no-apptoken	Patch
@test/db-no-seed	Patch
@test/recipes	Patch
@test/db-static-remote	Patch

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[github-actions]

⚠️ Package Trust Level Decreased

Caution

Decreased trust levels may indicate a higher risk of supply chain attacks. Please review these changes carefully.

📦 Package	🔒 Before	🔓 After
@emnapi/wasi-threads	trusted-with-provenance	none
espree	trusted-with-provenance	provenance
@opentelemetry/core	trusted-with-provenance	provenance
@opentelemetry/instrumentation	trusted-with-provenance	provenance
@opentelemetry/resources	trusted-with-provenance	provenance
@opentelemetry/sdk-trace-node	trusted-with-provenance	provenance
@opentelemetry/api-logs	trusted-with-provenance	provenance
@opentelemetry/context-async-hooks	trusted-with-provenance	provenance
@opentelemetry/semantic-conventions	trusted-with-provenance	provenance
require-in-the-middle	trusted-with-provenance	none
@opentelemetry/sdk-trace-base	trusted-with-provenance	provenance
eslint-scope	trusted-with-provenance	provenance