feat: full studio build -- light theme, canvas thumbnails, i18n (fa/en)

supabase/migrations/002_render_jobs.sql

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+-- Video render job queue (run in Supabase SQL Editor)
+-- Also create Storage bucket "renders" (public) in Dashboard → Storage
+
+create table if not exists public.render_jobs (
+  id uuid primary key default gen_random_uuid(),
+  project_id text not null,
+  status text not null default 'queued'
+    check (status in ('queued', 'processing', 'completed', 'failed')),
+  progress integer not null default 0 check (progress >= 0 and progress <= 100),
+  progress_message text,
+  output_url text,
+  scenes jsonb not null,
+  settings jsonb not null,
+  error_message text,
+  created_at timestamptz not null default now(),
+  updated_at timestamptz not null default now()
+);
+
+create index if not exists render_jobs_project_id_idx
+  on public.render_jobs (project_id);
+
+create index if not exists render_jobs_status_idx
+  on public.render_jobs (status);
+
+alter table public.render_jobs enable row level security;
+
+-- Service role bypasses RLS; allow authenticated read via API routes only.
+create policy "Authenticated users can read render jobs"
+  on public.render_jobs
+  for select
+  to authenticated
+  using (true);
+
+create or replace function public.set_render_jobs_updated_at()
+returns trigger
+language plpgsql
+as $$
+begin
+  new.updated_at = now();
+  return new;
+end;
+$$;
+
+drop trigger if exists render_jobs_updated_at on public.render_jobs;
+
+create trigger render_jobs_updated_at
+  before update on public.render_jobs
+  for each row
+  execute function public.set_render_jobs_updated_at();