Add Azure SQL cluster adapter

[patroza]

Summary

• add an Azure SQL cluster storage layer backed by @effect/sql-mssql and Effect SQL cluster storage
• parse both mssql:// URLs and Azure SQL semicolon connection strings
• patch Effect SQL Server cluster storage for duplicate keyed requests and SQL Server-safe polling locks
• add env-gated Azure SQL message/runner/RPC/workflow tests plus always-on config parser tests

Validation

• pnpm lint-fix
• pnpm check
• pnpm --filter @effect-app/infra test run cluster-azure-sql (2 passed, 7 skipped until AZURE_SQL_TEST_URL is set)

[pkg-pr-new]

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@effect-app/cli

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effect-app

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@effect-app/eslint-codegen-model

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@effect-app/eslint-shared-config

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@effect-app/infra

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@effect-app/vue

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@effect-app/vue-components

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commit: 1212c3d