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/000009_audit_outbox.sql

@@ -0,0 +1,32 @@
+-- 000009_audit_outbox.sql
+-- Up
+
+create table if not exists audit_log (
+  id text primary key,
+  user_id text references users(id) on delete set null,
+  team_id text references teams(id) on delete set null,
+  action text not null,
+  resource_kind text,
+  resource_id text,
+  data jsonb default '{}'::jsonb,
+  created_at timestamptz not null default now()
+);
+
+create index if not exists idx_audit_log_team_created_at
+  on audit_log(team_id, created_at);
+
+create table if not exists outbox_events (
+  id text primary key,          -- evt_...
+  topic text not null,
+  payload jsonb not null,
+  created_at timestamptz not null default now(),
+  processed boolean not null default false,
+  processed_at timestamptz
+);
+
+create index if not exists idx_outbox_events_processed
+  on outbox_events(processed, created_at);
+
+-- Down
+drop table if exists outbox_events cascade;
+drop table if exists audit_log cascade;