Close readonly analysis launch readiness

migrations/046_create_shadow_paper_observations.sql

@@ -0,0 +1,28 @@
+create table if not exists shadow_paper_observations (
+    id bigserial primary key,
+    instrument_id bigint not null references instruments(id) on delete cascade,
+    observation_date date not null,
+    timeframe varchar(16) not null default '1m',
+    session_code varchar(32) not null default 'ALL',
+    candidate_id bigint references trade_plan_candidates(id) on delete set null,
+    decision_packet_id bigint references decision_packets(id) on delete set null,
+    paper_ticket_id bigint references execution_tickets(id) on delete set null,
+    paper_execution_id bigint references trade_executions(id) on delete set null,
+    observation_status varchar(64) not null default 'observed',
+    system_recommendation varchar(64) not null default 'monitor',
+    operator_agreement varchar(32) not null default 'pending',
+    operator_note text not null default '',
+    created_by text not null default 'runtime_shadow_collector',
+    reason_codes jsonb not null default '[]'::jsonb,
+    payload jsonb not null default '{}'::jsonb,
+    observed_ts timestamptz not null default now(),
+    created_ts timestamptz not null default now(),
+    updated_ts timestamptz not null default now(),
+    unique (instrument_id, observation_date, timeframe, session_code)
+);
+
+create index if not exists idx_shadow_paper_observations_instrument_date_desc
+on shadow_paper_observations (instrument_id, observation_date desc, id desc);
+
+create index if not exists idx_shadow_paper_observations_status_date_desc
+on shadow_paper_observations (instrument_id, observation_status, observation_date desc);