Fix stale query operators after changing search parameters

[Gordex2014]

Summary

• Reconcile modifiers and comparator prefixes whenever a search parameter resolves to a different type, including plain conditions, forward chains, and _has rows.
• Keep unknown and ambiguous parameters permissive while applying the complete supported modifier matrix to known parameter types.
• Block Run, Save, Copy, Enter, saved-query runs, and deep-link runs until asynchronous catalog resolution leaves the controls, URL, and narration consistent.
• Handle catalog failures and stale responses safely, preserve unchanged URL spelling, and cancel deferred auto-runs when the user edits the builder.

Test plan

• cargo build -p helios-hfs --features ui
• cargo test -p helios-ui
• Full Chromium query-builder E2E suite
• Chromium Natural Language Search and Resources E2E suites
• Manual regression check for changing name:contains to gender without automatically running the query

Closes #627

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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