Docs: Scope studio-ui-patterns skill description to the Studio codebase to avoid false-positive triggering

# Improve documentation ## Link https://github.com/supabase/supabase/blob/master/.claude/skills/studio-ui-patterns/SKILL.md ## Describe the problem The `description` field of the `studio-ui-patterns` skill is too broad to trigger reliably. Current text: > Design system UI patterns for Supabase Studio. Use when building or updating > pages, forms, tables, charts, empty states, navigation, cards, alerts, or > side panels (sheets). Covers layout selection, component choice, and > placement conventions. Skill descriptions are matched against user requests to decide whether the skill should be loaded. Because this description lists generic UI nouns ("pages, forms, tables, charts, ...") without scoping them to the Studio codebase, it matches almost any frontend request — including work in unrelated repos or apps that happen to be open in the same agent session. This causes two problems: 1. **False positives.** A request like "help me build a settings form" in a non-Studio project triggers the skill and pushes Studio-specific conventions (`_Shadcn_` imports, `FormItemLayout`, `PageContainer`, etc.) onto code that should not follow them. 2. **No negative signal.** The description never tells the agent when *not* to apply the skill, so once it triggers, the agent has no basis to back off even if the surrounding code clearly isn't Studio. The body of the SKILL.md is correctly scoped (it references `apps/design-system/...` paths and Studio-specific components), but that context is only read *after* the skill is loaded, which is too late to prevent the wrong trigger. ## Describe the improvement Tighten the `description` so the trigger criteria are explicit about the codebase scope, and add a negative clause so the agent knows when to skip the skill. Before: ```yaml description: Design system UI patterns for Supabase Studio. Use when building or updating pages, forms, tables, charts, empty states, navigation, cards, alerts, or side panels (sheets). Covers layo…