[imanimanyara]

Summary

Removes toolkit's settings store, now replaced by the dedicated laranail/settings package. This is a full removal, not a deprecation, as the owner decided.

Removed:

• SettingsStore and SettingsStoreInterface;
• ToolkitManager::settings() and the @method lines on both facades;
• the two container bindings;
• the laranail.toolkit.settings config block and its env keys;
• the store's tests.

Kept, because none of them touch the store: isValidDatabaseConnection, RuntimeConfigurator and the feature toggles.

Docs:

• CHANGELOG [Unreleased] → Removed. This is a breaking change for the next minor, 0.4.0.
• UPGRADING explains how to move the JSON store into laranail/settings (--from=toolkit).
• The architecture, configuration, installation and utilities pages are updated.
• composer.json suggests laranail/settings.

Verification (local)

• Pest: 1191 passed; PHPStan, Rector, Pint and composer validate are clean.
• References: the remaining hits are the new CHANGELOG/UPGRADING text, the suggest entry, and a frozen 0.1.0 API-surface fixture that no code reads.
• Consumers: sis-wrapper and crm-tools-vtiger-client have 0 references to the settings store.

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