fix: Ensure provider is initialized on reconnect regardless of social_login

[developerfred]

Description

Previously, provider initialization and the auth connect flow were gated by isAuthSupported (tied to the social_login feature). When social_login was disabled this prevented provider.init() from running on startup for already-connected wallets, leaving local account state (e.g. allAccounts / activeCaipAddress) empty until a modal triggered initialization.

This PR:

Always calls provider.init() when the namespace should be synchronized and the connection is active, enclosed in a try/catch to avoid blocking startup on provider errors. Preserves the existing auth connectExternal flow when isAuthSupported is true. For non-auth-supported reconnects, explicitly marks the namespace as connected and emits CONNECT_SUCCESS (method: 'wallet') so local account state is populated and existing integrations continue to work. No changes are made to the social login flows themselves; this is a behavioral fix to ensure consistent account state during initialization.

Type of change

• [ ] Chore (non-breaking change that addresses non-functional tasks, maintenance, or code quality improvements)
• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Associated Issues

For Linear issues: Closes APKT-4120 For GH issues: closes #5256

Showcase (Optional)

If there is a UI change include the screenshots with before and after state. If new feature is being introduced, include the link to demo recording.

Checklist

• [ ] Code in this PR is covered by automated tests (Unit tests, E2E tests)
• [ ] My changes generate no new warnings
• [x] I have reviewed my own code
• [x] I have filled out all required sections
• [ ] I have tested my changes on the preview link
• [ ] Approver of this PR confirms that the changes are tested on the preview link

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Latest commit: 43329cf953cfcc1b2dbe57ca76dcf7943fde3571

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