[miniflare] Manage Flagship flags in Local Explorer

[akshitsinha]

Final PR in the stacked Flagship local-development series. Depends on #15329 and #15268.

Summary

• Adds Local Explorer APIs and UI for Flagship apps, flags, rules, rollouts, and evaluation.
• Supports create, edit, delete, enable, search, sort, test, and cross-worker workflows.
• Routes operations to the selected local worker when multiple dev processes use the same app ID.
• Adds generated API clients, agent guidance, unit coverage, and browser coverage.

Tests

• Tests included/updated
• Automated tests not possible - manual testing has been completed as follows:
• Additional testing not necessary because:

Public documentation

• Cloudflare docs PR(s): [Flagship] Document the local flag store for wrangler dev cloudflare-docs#32879
• Documentation not necessary because:

[changeset-bot]

🦋 Changeset detected

Latest commit: c06001f

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

This PR includes changesets to release 8 packages

Name	Type
@cloudflare/vite-plugin	Minor
miniflare	Minor
wrangler	Minor
@cloudflare/deploy-helpers	Patch
@cloudflare/pages-shared	Patch
@cloudflare/remote-bindings	Patch
@cloudflare/runtime-types	Patch
@cloudflare/vitest-plugin	Patch

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[pkg-pr-new]

@cloudflare/autoconfig

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@cloudflare/build-output-utils

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@cloudflare/codemods

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@cloudflare/config

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create-cloudflare

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@cloudflare/deploy-helpers

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@cloudflare/kv-asset-handler

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miniflare

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@cloudflare/pages-functions

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@cloudflare/pages-shared

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@cloudflare/unenv-preset

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@cloudflare/vite-plugin

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@cloudflare/vitest-plugin

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@cloudflare/workers-auth

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@cloudflare/workers-editor-shared

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@cloudflare/workers-utils

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wrangler

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commit: c06001f