v0.3.0 — Tavily settings-card refresh + latest Tavily search params

@pymodel/dsh-tavily 0.3.0\n\n### Settings-card design refresh (informed by current UI/a11y guidance)\n- Collapsed-header mode badge with status dot: Official DeepSeek / Tavily · keyless / Tavily · API key at a glance\n- Polite aria-live status region announcing connection-test and save outcomes\n- Inline spinners on Test connection / Save; connected-success tint; press feedback\n- Show/hide reveal for the API key input (autocomplete/spellcheck off)\n- prefers-reduced-motion support across card motion\n\n### Latest Tavily Search API, opt-in via plugin config\n- searchDepth: basic / advanced / new fast tier (invalid values fall back to basic)\n- autoParameters: lets Tavily tune topic & depth per query (default off)\n\n## Housekeeping\n- dsh-mcp-firecrawl & dsh-mcp-context7 patch-bumped to 0.2.1 so the workspace-wide publish run succeeds (no functional changes)