chore: organize documentation structure for monorepo

- Create /docs structure (microdao, daarion, agents)
- Organize 61 cursor technical docs
- Add README files for each category
- Copy key documents to public categories
- Add GitHub setup instructions and scripts

supabase/migrations/000003_projects_tasks.sql

@@ -0,0 +1,37 @@
+-- 000003_projects_tasks.sql
+-- Up
+
+create table if not exists projects (
+  id text primary key,              -- p_...
+  team_id text not null references teams(id) on delete cascade,
+  name text not null,
+  description text,
+  status text not null default 'active' check (status in ('active','archived')),
+  created_at timestamptz not null default now(),
+  updated_at timestamptz
+);
+
+create index if not exists idx_projects_team_id
+  on projects(team_id);
+
+create table if not exists tasks (
+  id text primary key,              -- task_...
+  project_id text not null references projects(id) on delete cascade,
+  title text not null,
+  description text,
+  status text not null default 'todo'
+    check (status in ('todo','in_progress','done','cancelled')),
+  assignee text references users(id) on delete set null,
+  created_at timestamptz not null default now(),
+  updated_at timestamptz
+);
+
+create index if not exists idx_tasks_project_id
+  on tasks(project_id);
+
+create index if not exists idx_tasks_assignee
+  on tasks(assignee);
+
+-- Down
+drop table if exists tasks cascade;
+drop table if exists projects cascade;