Phase 3 trade plan candidates

migrations/022_create_trade_plan_candidates.sql

@@ -0,0 +1,33 @@
+create table if not exists trade_plan_candidates (
+    id bigserial primary key,
+    instrument_id bigint not null references instruments(id),
+    trading_plan_id bigint not null references trading_plans(id),
+    model_code text not null,
+    status text not null,
+    side text,
+    setup_timeframe text not null,
+    trigger_timeframe text not null,
+    created_ts timestamptz not null,
+    expires_ts timestamptz,
+    confirmation_state jsonb not null default '{}'::jsonb,
+    missing_confirmations jsonb not null default '[]'::jsonb,
+    evidence jsonb not null default '{}'::jsonb,
+    entry jsonb not null default '{}'::jsonb,
+    invalidations jsonb not null default '[]'::jsonb,
+    narrative text not null,
+    meta jsonb not null default '{}'::jsonb,
+    created_at timestamptz not null default now(),
+    updated_at timestamptz not null default now()
+);
+
+create index if not exists idx_trade_plan_candidates_instr_created_desc
+on trade_plan_candidates (instrument_id, created_ts desc);
+
+create index if not exists idx_trade_plan_candidates_plan_created_desc
+on trade_plan_candidates (trading_plan_id, created_ts desc);
+
+create index if not exists idx_trade_plan_candidates_instr_status_created_desc
+on trade_plan_candidates (instrument_id, status, created_ts desc);
+
+create index if not exists idx_trade_plan_candidates_instr_model_created_desc
+on trade_plan_candidates (instrument_id, model_code, created_ts desc);