Add --overlay shorthand for lb command and gitignore *.db files

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitignore

@@ -17,3 +17,4 @@ build/
 .coverage
 htmlcov/
 runs/
+*.db

apps/tracker/cli.py

@@ -1035,7 +1035,9 @@ def main() -> None:
             help="Include retired legacy PEAD / short-core / exact-pocket families",
         )
         subparser.add_argument(
+            "--overlay",
             "--overlay-only",
+            dest="overlay_only",
             action="store_true",
             help="Show the separate overlay/book-of-books leaderboard instead of the default single-book leaderboard",
         )

journal/LEADERBOARD.md

@@ -1,7 +1,7 @@
 # Strategy Improvement Leaderboard
-_Updated: 2026-03-27T03:16:32.096793+00:00_
+_Updated: 2026-03-27T03:17:36.855688+00:00_
 
-_Default view excludes overlay/book-of-books rows, retired legacy PEAD / short-core / exact-pocket families, and incomplete train-only scans. Use `fithia2 lb --overlay-only` for overlays or `fithia2 lb --include-retired` to inspect archived research._
+_Default view excludes overlay/book-of-books rows, retired legacy PEAD / short-core / exact-pocket families, and incomplete train-only scans. Use `fithia2 lb --overlay` for overlays or `fithia2 lb --include-retired` to inspect archived research._
 
 _`SQS` below is public SQS v4: v3 deployment/WFV-first ranking plus a modest common-window capital-growth term when available. Stress OOT remains an eligibility gate. Prior v3 values remain in `experiment_registry.json` as `sqs_v3_score`._
 

journal/OVERLAY_LEADERBOARD.md

@@ -1,5 +1,5 @@
 # Overlay Strategy Leaderboard
-_Updated: 2026-03-27T03:16:32.096793+00:00_
+_Updated: 2026-03-27T03:17:36.855688+00:00_
 
 _This board is separate from the default single-book leaderboard. Overlay rows are book-of-books evaluations and are not directly comparable to single-book `SQS` rows._
 

journal/experiment_registry.json

@@ -195632,5 +195632,5 @@
       "timestamp": "2026-03-26T14:56:24.543029+00:00"
     }
   ],
-  "updated_at": "2026-03-27T03:16:32.096793+00:00"
+  "updated_at": "2026-03-27T03:17:36.855688+00:00"
 }

libs/backtest/tracker.py

@@ -2570,7 +2570,7 @@ def _write_leaderboard_md(
     lines: list[str] = []
     lines.append("# Strategy Improvement Leaderboard")
     lines.append(f"_Updated: {registry.updated_at}_\n")
-    lines.append("_Default view excludes overlay/book-of-books rows, retired legacy PEAD / short-core / exact-pocket families, and incomplete train-only scans. Use `fithia2 lb --overlay-only` for overlays or `fithia2 lb --include-retired` to inspect archived research._\n")
+    lines.append("_Default view excludes overlay/book-of-books rows, retired legacy PEAD / short-core / exact-pocket families, and incomplete train-only scans. Use `fithia2 lb --overlay` for overlays or `fithia2 lb --include-retired` to inspect archived research._\n")
     lines.append("_`SQS` below is public SQS v4: v3 deployment/WFV-first ranking plus a modest common-window capital-growth term when available. Stress OOT remains an eligibility gate. Prior v3 values remain in `experiment_registry.json` as `sqs_v3_score`._\n")
     lines.append("| # | Experiment | SQS | [Tr]Ret% | [V]Ret% | [T]Ret% | [T]Ann% | [T]DD% | [T]Gross% | [T]DIM% | [T]R/G | Date |")
     lines.append("|---|-----------|-----|----------|----------|----------|----------|--------|------------|----------|---------|------|")