feat(supabase): complete production schema + raise prices

supabase/schema.sql — one idempotent file to set up the whole backend,
replacing the partial 001/002 migrations:

  - plans table: source of truth for tiers, pricing & limits
  - profiles: SECURITY FIX — old RLS let a user run
    `update profiles set plan='max'` and self-grant a paid plan. A
    before-update trigger now reverts plan / stripe / subscription /
    ai_credits columns unless the caller is the service_role.
  - all sync tables: notes, tasks, task_lists, events (existing) PLUS
    code_snippets, ai_conversations, ai_messages, memories,
    timer_sessions, voice_recordings (metadata; blob -> storage)
  - collaboration: workspaces, workspace_members, workspace_invites,
    accept_workspace_invite(), and is_workspace_member /
    can_edit_workspace / is_workspace_owner SECURITY DEFINER helpers
    (avoids the self-referential-RLS recursion footgun)
  - content tables gain an optional workspace_id with RLS that grants
    members read and editors write
  - billing_events: idempotent Stripe webhook audit log (RLS denies all
    -> service_role only)
  - ai_usage: per-call metering for credit limits / abuse detection
  - realtime publication for the collaborative tables
  - storage buckets (vault, voice, avatars) with per-user path RLS

Pricing raised: Pro $8 -> $12/mo, Max $18 -> $29/mo, with annual options
($120 / $290). PricingPage feature lists reworked to justify it (real-
time collaboration on Pro, team workspaces on Max). usePlanLimits.ts
kept in sync with the plans table (adds price + collaboration fields).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: AzizX-coder

src/features/pricing/PricingPage.tsx

@@ -9,6 +9,7 @@ const PLANS = [
     name: "Free",
     price: "$0",
     period: "forever",
+    note: "",
     icon: <Sparkles size={20} className="text-text-tertiary" />,
     color: "border-border/30",
     badge: "",
@@ -27,17 +28,18 @@ const PLANS = [
   {
     id: "pro",
     name: "Pro",
-    price: "$8",
+    price: "$12",
     period: "/ month",
+    note: "or $120 / year — save 17%",
     icon: <Crown size={20} className="text-amber-400" />,
     color: "border-amber-400/40 ring-1 ring-amber-400/20",
     badge: "Most Popular",
     features: [
-      "Unlimited notes, tasks & flows",
-      "Unlimited Kanban boards",
-      "Cloud sync across devices",
-      "Public note sharing",
-      "Cloud Vault (5GB)",
+      "Unlimited notes, tasks, boards & flows",
+      "Cloud sync across all your devices",
+      "Real-time collaboration — up to 3 people",
+      "Public note sharing with links",
+      "5 GB encrypted Cloud Vault",
       "500 AI credits / month",
       "Priority support",
     ],
@@ -47,18 +49,19 @@ const PLANS = [
   {
     id: "max",
     name: "Max",
-    price: "$18",
+    price: "$29",
     period: "/ month",
+    note: "or $290 / year — save 17%",
     icon: <Zap size={20} className="text-purple-400" />,
     color: "border-purple-400/40",
     badge: "",
     features: [
       "Everything in Pro",
-      "20GB Cloud Vault",
+      "Team workspaces — up to 10 people",
+      "20 GB encrypted Cloud Vault",
       "Unlimited AI credits",
-      "Advanced AI features",
+      "Advanced AI models",
       "Early access to new features",
-      "Team collaboration (coming soon)",
       "Dedicated support",
     ],
     cta: "Upgrade to Max",
@@ -137,8 +140,13 @@ export function PricingPage() {
 
               {/* Price */}
               <div className="mb-5">
-                <span className="text-[36px] font-black text-text-primary">{plan.price}</span>
-                <span className="text-[13px] text-text-tertiary ml-1">{plan.period}</span>
+                <div>
+                  <span className="text-[36px] font-black text-text-primary">{plan.price}</span>
+                  <span className="text-[13px] text-text-tertiary ml-1">{plan.period}</span>
+                </div>
+                {plan.note && (
+                  <p className="text-[11px] text-text-tertiary mt-1">{plan.note}</p>
+                )}
               </div>
 
               {/* Features */}

src/hooks/usePlanLimits.ts

@@ -1,34 +1,47 @@
 import { useProfile } from "./useProfile";
 
+// Keep in sync with the `plans` table in supabase/schema.sql.
 export const PLAN_LIMITS = {
   free: {
+    priceMonthly: 0,
+    priceYearly: 0,
     maxNotes: 50,
     maxBoards: 3,
     maxFlows: 10,
     maxVaultMB: 0,
     canShare: false,
     canCloudSync: false,
     canUseCloudVault: false,
+    canCollaborate: false,
+    maxWorkspaceMembers: 1,
     aiCreditsPerMonth: 20,
   },
   pro: {
+    priceMonthly: 12,
+    priceYearly: 120,
     maxNotes: Infinity,
     maxBoards: Infinity,
     maxFlows: Infinity,
     maxVaultMB: 5000,
     canShare: true,
     canCloudSync: true,
     canUseCloudVault: true,
+    canCollaborate: true,
+    maxWorkspaceMembers: 3,
     aiCreditsPerMonth: 500,
   },
   max: {
+    priceMonthly: 29,
+    priceYearly: 290,
     maxNotes: Infinity,
     maxBoards: Infinity,
     maxFlows: Infinity,
     maxVaultMB: 20000,
     canShare: true,
     canCloudSync: true,
     canUseCloudVault: true,
+    canCollaborate: true,
+    maxWorkspaceMembers: 10,
     aiCreditsPerMonth: Infinity,
   },
 } as const;