[Rules] Add tags, search, and filters

[emi-ran]

Feature

Add rule tags, search, and filters for growing rule libraries.

Proposed behavior

• Persist normalized user tags such as Home, Work, Car, Security, and Battery on each rule.
• Enforce trim, case-insensitive uniqueness, a modest tag count/length limit, and safe plain-text rendering.
• Home list supports debounced name/tag search plus filters for tag, enabled state, trigger category, action category, and attention state (failed/permission blocked where data supports it).
• Filters combine predictably and expose clear/reset state; search/filter must not alter rule ordering or data.
• Include tags in normal/encrypted exports according to existing backup rules.

Acceptance criteria

• User can add, remove, search, and filter tags in Turkish and English UI.
• Search result updates are deterministic and accessible to TalkBack.
• Existing rules migrate with empty tags.

Verification

• Pure normalization/filter tests, DataStore migration test, export/import test, Compose UI tests for empty/no-result/clear cases.
• Device smoke test with 50+ representative rules; verify scrolling and no sensitive field exposure.