Add historical ratios, forward estimates, insider transactions, SEC filings

- services/fmp_service.py: add get_historical_ratios, get_historical_key_metrics,
  get_analyst_estimates, get_insider_transactions, get_sec_filings
- components/valuation.py: add Historical Ratios and Forward Estimates subtabs
- components/insiders.py: new — insider buy/sell summary, monthly chart, detail table
- components/filings.py: new — SEC filings with type filter and direct links
- app.py: wire in Insiders and Filings top-level tabs

1 files changed, 43 insertions, 0 deletions

diff --git a/services/fmp_service.py b/services/fmp_service.py
index 4dea211..0a3419d 100644
--- a/services/fmp_service.py
+++ b/services/fmp_service.py
@@ -117,3 +117,46 @@ def get_company_news(ticker: str, limit: int = 20) -> list[dict]:
     if data and isinstance(data, list):
         return data
     return []
+
+
+@st.cache_data(ttl=86400)
+def get_historical_ratios(ticker: str, limit: int = 10) -> list[dict]:
+    """Annual historical valuation ratios (P/E, P/B, P/S, EV/EBITDA, etc.)."""
+    data = _get(LEGACY_BASE, f"/ratios/{ticker.upper()}", params={"limit": limit})
+    return data if isinstance(data, list) else []
+
+
+@st.cache_data(ttl=86400)
+def get_historical_key_metrics(ticker: str, limit: int = 10) -> list[dict]:
+    """Annual historical key metrics (ROE, ROA, margins, debt/equity, etc.)."""
+    data = _get(LEGACY_BASE, f"/key-metrics/{ticker.upper()}", params={"limit": limit})
+    return data if isinstance(data, list) else []
+
+
+@st.cache_data(ttl=3600)
+def get_analyst_estimates(ticker: str) -> dict:
+    """Return annual and quarterly forward analyst estimates."""
+    annual = _get(LEGACY_BASE, f"/analyst-estimates/{ticker.upper()}", params={"limit": 5})
+    quarterly = _get(
+        LEGACY_BASE,
+        f"/analyst-estimates/{ticker.upper()}",
+        params={"limit": 10, "period": "quarter"},
+    )
+    return {
+        "annual": annual if isinstance(annual, list) else [],
+        "quarterly": quarterly if isinstance(quarterly, list) else [],
+    }
+
+
+@st.cache_data(ttl=3600)
+def get_insider_transactions(ticker: str, limit: int = 50) -> list[dict]:
+    """Return recent insider buy/sell transactions."""
+    data = _get(LEGACY_BASE, "/insider-trading", params={"symbol": ticker.upper(), "limit": limit})
+    return data if isinstance(data, list) else []
+
+
+@st.cache_data(ttl=3600)
+def get_sec_filings(ticker: str, limit: int = 30) -> list[dict]:
+    """Return recent SEC filings (10-K, 10-Q, 8-K, etc.)."""
+    data = _get(LEGACY_BASE, f"/sec_filings/{ticker.upper()}", params={"limit": limit})
+    return data if isinstance(data, list) else []