refactor(schema): split persistence schema — core GA + strategy_crypto paper

- multi_swarm_core/persistence/schema.py: rimuove tabelle paper_trading_*
  (5 CREATE TABLE + 3 indici idx_paper_*). Restano solo le tabelle GA universali
  (runs, generations, genomes, evaluations, cost_records, adversarial_findings).
- strategy_crypto/backend/schema.py NEW: PAPER_SCHEMA_SQL standalone + init_schema()
  con mkdir parent, scrive su state/strategy_crypto.db.

Ownership: ogni strategia possiede il proprio schema, isolato dal core.
Pattern replicabile per strategy_forex, strategy_equity, ecc.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/multi_swarm_core/multi_swarm_core/persistence/schema.py

@@ -77,68 +77,7 @@ CREATE TABLE IF NOT EXISTS adversarial_findings (
     FOREIGN KEY (run_id) REFERENCES runs(id)
 );
 
-CREATE TABLE IF NOT EXISTS paper_trading_runs (
-    id TEXT PRIMARY KEY,
-    name TEXT NOT NULL,
-    started_at TEXT NOT NULL,
-    stopped_at TEXT,
-    status TEXT NOT NULL DEFAULT 'running',
-    initial_capital REAL NOT NULL,
-    config_json TEXT NOT NULL
-);
-
-CREATE TABLE IF NOT EXISTS paper_trading_positions (
-    paper_run_id TEXT NOT NULL,
-    symbol TEXT NOT NULL,
-    side TEXT NOT NULL,
-    qty REAL NOT NULL,
-    entry_price REAL NOT NULL,
-    entry_ts TEXT NOT NULL,
-    PRIMARY KEY (paper_run_id, symbol),
-    FOREIGN KEY (paper_run_id) REFERENCES paper_trading_runs(id)
-);
-
-CREATE TABLE IF NOT EXISTS paper_trading_trades (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    paper_run_id TEXT NOT NULL,
-    symbol TEXT NOT NULL,
-    side TEXT NOT NULL,
-    qty REAL NOT NULL,
-    entry_price REAL NOT NULL,
-    exit_price REAL NOT NULL,
-    entry_ts TEXT NOT NULL,
-    exit_ts TEXT NOT NULL,
-    pnl REAL NOT NULL,
-    fees REAL NOT NULL,
-    FOREIGN KEY (paper_run_id) REFERENCES paper_trading_runs(id)
-);
-
-CREATE TABLE IF NOT EXISTS paper_trading_equity (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    paper_run_id TEXT NOT NULL,
-    ts TEXT NOT NULL,
-    equity REAL NOT NULL,
-    cash REAL NOT NULL,
-    positions_value REAL NOT NULL,
-    FOREIGN KEY (paper_run_id) REFERENCES paper_trading_runs(id)
-);
-
-CREATE TABLE IF NOT EXISTS paper_trading_ticks (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    paper_run_id TEXT NOT NULL,
-    symbol TEXT NOT NULL,
-    ts TEXT NOT NULL,
-    bar_ts TEXT NOT NULL,
-    close_price REAL NOT NULL,
-    signal TEXT NOT NULL,
-    action_taken TEXT NOT NULL,
-    FOREIGN KEY (paper_run_id) REFERENCES paper_trading_runs(id)
-);
-
 CREATE INDEX IF NOT EXISTS idx_evaluations_fitness ON evaluations(run_id, fitness DESC);
 CREATE INDEX IF NOT EXISTS idx_genomes_generation ON genomes(run_id, generation_idx);
 CREATE INDEX IF NOT EXISTS idx_cost_run ON cost_records(run_id);
-CREATE INDEX IF NOT EXISTS idx_paper_trades_run ON paper_trading_trades(paper_run_id, exit_ts);
-CREATE INDEX IF NOT EXISTS idx_paper_equity_run ON paper_trading_equity(paper_run_id, ts);
-CREATE INDEX IF NOT EXISTS idx_paper_ticks_run ON paper_trading_ticks(paper_run_id, ts);
 """

src/strategy_crypto/strategy_crypto/backend/schema.py

@@ -0,0 +1,86 @@
+"""Schema SQLite per le tabelle paper-trading della strategia crypto.
+
+Owned dal member strategy_crypto: il DDL e' standalone rispetto al core,
+e scrive su un database dedicato (state/strategy_crypto.db) separato dal
+runs.db del core GA. Pattern replicabile per future strategie.
+"""
+
+from __future__ import annotations
+
+import sqlite3
+from pathlib import Path
+
+PAPER_SCHEMA_SQL = """
+CREATE TABLE IF NOT EXISTS paper_trading_runs (
+    id TEXT PRIMARY KEY,
+    name TEXT NOT NULL,
+    started_at TEXT NOT NULL,
+    stopped_at TEXT,
+    status TEXT NOT NULL DEFAULT 'running',
+    initial_capital REAL NOT NULL,
+    config_json TEXT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS paper_trading_positions (
+    paper_run_id TEXT NOT NULL,
+    symbol TEXT NOT NULL,
+    side TEXT NOT NULL,
+    qty REAL NOT NULL,
+    entry_price REAL NOT NULL,
+    entry_ts TEXT NOT NULL,
+    PRIMARY KEY (paper_run_id, symbol),
+    FOREIGN KEY (paper_run_id) REFERENCES paper_trading_runs(id)
+);
+
+CREATE TABLE IF NOT EXISTS paper_trading_trades (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    paper_run_id TEXT NOT NULL,
+    symbol TEXT NOT NULL,
+    side TEXT NOT NULL,
+    qty REAL NOT NULL,
+    entry_price REAL NOT NULL,
+    exit_price REAL NOT NULL,
+    entry_ts TEXT NOT NULL,
+    exit_ts TEXT NOT NULL,
+    pnl REAL NOT NULL,
+    fees REAL NOT NULL,
+    FOREIGN KEY (paper_run_id) REFERENCES paper_trading_runs(id)
+);
+
+CREATE TABLE IF NOT EXISTS paper_trading_equity (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    paper_run_id TEXT NOT NULL,
+    ts TEXT NOT NULL,
+    equity REAL NOT NULL,
+    cash REAL NOT NULL,
+    positions_value REAL NOT NULL,
+    FOREIGN KEY (paper_run_id) REFERENCES paper_trading_runs(id)
+);
+
+CREATE TABLE IF NOT EXISTS paper_trading_ticks (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    paper_run_id TEXT NOT NULL,
+    symbol TEXT NOT NULL,
+    ts TEXT NOT NULL,
+    bar_ts TEXT NOT NULL,
+    close_price REAL NOT NULL,
+    signal TEXT NOT NULL,
+    action_taken TEXT NOT NULL,
+    FOREIGN KEY (paper_run_id) REFERENCES paper_trading_runs(id)
+);
+
+CREATE INDEX IF NOT EXISTS idx_paper_trades_run ON paper_trading_trades(paper_run_id, exit_ts);
+CREATE INDEX IF NOT EXISTS idx_paper_equity_run ON paper_trading_equity(paper_run_id, ts);
+CREATE INDEX IF NOT EXISTS idx_paper_ticks_run ON paper_trading_ticks(paper_run_id, ts);
+"""
+
+
+def init_schema(db_path: Path | str) -> None:
+    """Crea (se mancanti) le tabelle paper_trading_* sul db indicato."""
+    Path(db_path).parent.mkdir(parents=True, exist_ok=True)
+    conn = sqlite3.connect(str(db_path))
+    try:
+        conn.executescript(PAPER_SCHEMA_SQL)
+        conn.commit()
+    finally:
+        conn.close()