diff --git a/db_migrations/20260408_broker_callback_state.sql b/db_migrations/20260408_broker_callback_state.sql
new file mode 100644
index 0000000..032c86d
--- /dev/null
+++ b/db_migrations/20260408_broker_callback_state.sql
@@ -0,0 +1,18 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS broker_callback_state (
+    id TEXT PRIMARY KEY,
+    state_hash TEXT NOT NULL UNIQUE,
+    user_id TEXT NOT NULL REFERENCES app_user(id) ON DELETE CASCADE,
+    session_id TEXT NOT NULL REFERENCES app_session(id) ON DELETE CASCADE,
+    broker TEXT NOT NULL,
+    flow TEXT NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL,
+    expires_at TIMESTAMPTZ NOT NULL,
+    consumed_at TIMESTAMPTZ
+);
+
+CREATE INDEX IF NOT EXISTS idx_broker_callback_state_lookup
+    ON broker_callback_state (user_id, session_id, broker, flow, expires_at DESC);
+
+COMMIT;
diff --git a/db_migrations/20260408_execution_claims.sql b/db_migrations/20260408_execution_claims.sql
new file mode 100644
index 0000000..29528ba
--- /dev/null
+++ b/db_migrations/20260408_execution_claims.sql
@@ -0,0 +1,18 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS execution_claim (
+    id TEXT PRIMARY KEY,
+    user_id TEXT NOT NULL REFERENCES app_user(id) ON DELETE CASCADE,
+    run_id TEXT NOT NULL REFERENCES strategy_run(run_id) ON DELETE CASCADE,
+    mode TEXT NOT NULL,
+    logical_time TIMESTAMPTZ NOT NULL,
+    claimed_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS uq_execution_claim_scope
+    ON execution_claim (user_id, run_id, logical_time);
+
+CREATE INDEX IF NOT EXISTS idx_execution_claim_run_claimed
+    ON execution_claim (run_id, claimed_at DESC);
+
+COMMIT;
diff --git a/db_migrations/20260408_run_leases.sql b/db_migrations/20260408_run_leases.sql
new file mode 100644
index 0000000..28d784d
--- /dev/null
+++ b/db_migrations/20260408_run_leases.sql
@@ -0,0 +1,14 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS run_leases (
+    run_id TEXT PRIMARY KEY REFERENCES strategy_run(run_id) ON DELETE CASCADE,
+    owner_id TEXT NOT NULL,
+    leased_at TIMESTAMPTZ NOT NULL,
+    expires_at TIMESTAMPTZ NOT NULL,
+    heartbeat_at TIMESTAMPTZ
+);
+
+CREATE INDEX IF NOT EXISTS idx_run_leases_owner_expires
+    ON run_leases (owner_id, expires_at DESC);
+
+COMMIT;
diff --git a/db_migrations/20260408_support_request_audit.sql b/db_migrations/20260408_support_request_audit.sql
new file mode 100644
index 0000000..d1b2faf
--- /dev/null
+++ b/db_migrations/20260408_support_request_audit.sql
@@ -0,0 +1,20 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS support_request_audit (
+    id BIGSERIAL PRIMARY KEY,
+    endpoint TEXT NOT NULL,
+    ip_hash TEXT,
+    email_hash TEXT,
+    ticket_hash TEXT,
+    blocked BOOLEAN NOT NULL DEFAULT FALSE,
+    reason TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_support_request_audit_endpoint_ip_created
+    ON support_request_audit (endpoint, ip_hash, created_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_support_request_audit_ticket_created
+    ON support_request_audit (ticket_hash, created_at DESC);
+
+COMMIT;
diff --git a/schema.sql b/schema.sql
index 01f0a5c..9964de0 100644
--- a/schema.sql
+++ b/schema.sql
@@ -288,3 +288,106 @@ CREATE TABLE IF NOT EXISTS market_close (
 
 CREATE INDEX IF NOT EXISTS idx_market_close_symbol ON market_close(symbol);
 CREATE INDEX IF NOT EXISTS idx_market_close_date ON market_close(date);
+
+-- =========================================
+-- 9) Bootstrap compatibility patch
+-- Keeps bootstrap schema aligned with later migrations.
+-- =========================================
+
+ALTER TABLE app_session
+  ADD COLUMN IF NOT EXISTS ip TEXT,
+  ADD COLUMN IF NOT EXISTS user_agent TEXT;
+
+ALTER TABLE user_broker
+  ADD COLUMN IF NOT EXISTS api_secret TEXT,
+  ADD COLUMN IF NOT EXISTS auth_state TEXT;
+
+CREATE TABLE IF NOT EXISTS password_reset_otp (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  email TEXT NOT NULL,
+  otp_hash TEXT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+  expires_at TIMESTAMPTZ NOT NULL,
+  used_at TIMESTAMPTZ
+);
+
+CREATE INDEX IF NOT EXISTS idx_password_reset_otp_email
+  ON password_reset_otp(email);
+
+CREATE INDEX IF NOT EXISTS idx_password_reset_otp_expires_at
+  ON password_reset_otp(expires_at);
+
+CREATE TABLE IF NOT EXISTS support_ticket (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  name TEXT NOT NULL,
+  email TEXT NOT NULL,
+  subject TEXT NOT NULL,
+  message TEXT NOT NULL,
+  status TEXT NOT NULL DEFAULT 'NEW',
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE INDEX IF NOT EXISTS idx_support_ticket_email
+  ON support_ticket(email);
+
+CREATE INDEX IF NOT EXISTS idx_support_ticket_created_at
+  ON support_ticket(created_at DESC);
+
+CREATE TABLE IF NOT EXISTS broker_callback_state (
+  id TEXT PRIMARY KEY,
+  state_hash TEXT NOT NULL UNIQUE,
+  user_id TEXT NOT NULL REFERENCES app_user(id) ON DELETE CASCADE,
+  session_id TEXT NOT NULL REFERENCES app_session(id) ON DELETE CASCADE,
+  broker TEXT NOT NULL,
+  flow TEXT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL,
+  expires_at TIMESTAMPTZ NOT NULL,
+  consumed_at TIMESTAMPTZ
+);
+
+CREATE INDEX IF NOT EXISTS idx_broker_callback_state_lookup
+  ON broker_callback_state(user_id, session_id, broker, flow, expires_at DESC);
+
+CREATE TABLE IF NOT EXISTS execution_claim (
+  id TEXT PRIMARY KEY,
+  user_id TEXT NOT NULL REFERENCES app_user(id) ON DELETE CASCADE,
+  run_id TEXT NOT NULL REFERENCES strategy_run(run_id) ON DELETE CASCADE,
+  mode TEXT NOT NULL,
+  logical_time TIMESTAMPTZ NOT NULL,
+  claimed_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS uq_execution_claim_scope
+  ON execution_claim(user_id, run_id, logical_time);
+
+CREATE INDEX IF NOT EXISTS idx_execution_claim_run_claimed
+  ON execution_claim(run_id, claimed_at DESC);
+
+CREATE TABLE IF NOT EXISTS run_leases (
+  run_id TEXT PRIMARY KEY REFERENCES strategy_run(run_id) ON DELETE CASCADE,
+  owner_id TEXT NOT NULL,
+  leased_at TIMESTAMPTZ NOT NULL,
+  expires_at TIMESTAMPTZ NOT NULL,
+  heartbeat_at TIMESTAMPTZ
+);
+
+CREATE INDEX IF NOT EXISTS idx_run_leases_owner_expires
+  ON run_leases(owner_id, expires_at DESC);
+
+CREATE TABLE IF NOT EXISTS support_request_audit (
+  id BIGSERIAL PRIMARY KEY,
+  endpoint TEXT NOT NULL,
+  ip_hash TEXT,
+  email_hash TEXT,
+  ticket_hash TEXT,
+  blocked BOOLEAN NOT NULL DEFAULT FALSE,
+  reason TEXT,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE INDEX IF NOT EXISTS idx_support_request_audit_endpoint_ip_created
+  ON support_request_audit(endpoint, ip_hash, created_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_support_request_audit_ticket_created
+  ON support_request_audit(ticket_hash, created_at DESC);