fix(tabs): persist active tab in manager URL

[middleDuckAi]

Summary

• add an opt-in urlParameter property to module-tab-shell
• persist the selected tab in the embedded module URL and the Evolution Manager hash without reloading the page
• expose the shared synchronizer as EvoUI.moduleTabs.syncUrl
• document the component parameter and cover the URL-state contract in package tests

Why

Evolution Manager restores an embedded module from the URL stored in its parent hash. Previously, switching a module tab only changed Livewire state, so refreshing the manager could reopen the stale or default tab. Consumers can now pass url-parameter="tab" and keep both URL layers aligned with the active tab.

The behavior is opt-in, so existing module consumers are unchanged. Parent-window access is best effort and safely ignored for cross-origin embeds.

Verification

• git diff --check origin/main...HEAD
• module-tab state assertions pass, including the new URL synchronization contract
• browser fixture confirmed that switching tabs updates both the iframe query and the parent manager hash and survives refresh
• full composer test: 1,641 assertions; three existing origin/main static-contract failures remain unrelated to this PR (save-button feedback markers and one typography token)