feat: public split visibility, RLS recursion fixes, and consolidated tasting permission management

- Added public discovery section for active splits on the landing page
- Refactored split detail page for guest support and login redirects
- Extracted SplitCard component for reuse
- Consolidated RLS policies for bottles and tastings to resolve permission errors
- Added unified SQL consolidation script for RLS and naming fixes
- Enhanced service logging for better database error diagnostics

rls_public_bottle_access.sql

@@ -0,0 +1,54 @@
+-- ============================================
+-- Restore Public/Buddy Bottle Read Access
+-- ============================================
+-- This script fixes the issue where non-owners cannot see bottle data 
+-- for public splits or shared tastings.
+-- ============================================
+
+-- Drop the overly restrictive performance-fix policy
+DROP POLICY IF EXISTS "bottles_policy" ON bottles;
+
+-- 1. Unified SELECT policy: owner OR active split viewer OR session participant
+CREATE POLICY "bottles_select_policy" ON bottles
+FOR SELECT USING (
+  -- Owner access
+  (SELECT auth.uid()) = user_id OR 
+  
+  -- Public split access (anyone can see bottle info if the split is active)
+  EXISTS (
+    SELECT 1 FROM bottle_splits 
+    WHERE bottle_id = bottles.id AND is_active = true
+  ) OR
+  
+  -- Participant access (user is already part of this split)
+  EXISTS (
+    SELECT 1 FROM split_participants sp
+    JOIN bottle_splits bs ON bs.id = sp.split_id
+    WHERE bs.bottle_id = bottles.id AND sp.user_id = (SELECT auth.uid())
+  ) OR
+
+  -- Buddy/Session access (user is a buddy in a session involving this bottle)
+  id IN (
+    SELECT t.bottle_id 
+    FROM tastings t
+    JOIN tasting_sessions ts ON ts.id = t.session_id
+    JOIN session_participants sp ON sp.session_id = ts.id
+    JOIN buddies b ON b.id = sp.buddy_id
+    WHERE b.buddy_profile_id = (SELECT auth.uid())
+  )
+);
+
+-- 2. Owner-only for modifications (No change needed from security perspective)
+CREATE POLICY "bottles_insert_policy" ON bottles
+FOR INSERT WITH CHECK ((SELECT auth.uid()) = user_id);
+
+CREATE POLICY "bottles_update_policy" ON bottles
+FOR UPDATE USING ((SELECT auth.uid()) = user_id);
+
+CREATE POLICY "bottles_delete_policy" ON bottles
+FOR DELETE USING ((SELECT auth.uid()) = user_id);
+
+-- ============================================
+-- Verification query
+-- ============================================
+-- SELECT * FROM pg_policies WHERE tablename = 'bottles';