fix(dashboard): remove st.secrets dependency, add .streamlit/secrets.toml, fix ChromaDB metadata types, v0.3.2

.streamlit/secrets.toml

@@ -0,0 +1 @@
+[default]

src/app_dashboard.py

@@ -5,6 +5,7 @@ Seiten: Übersicht, Engramme, Suche, Graph, Heal-Log, Neural Scorer.
 
 import json
 import sys
+import os
 from pathlib import Path
 
 import streamlit as st
@@ -25,33 +26,22 @@ _DEFAULT_DB = _root / "data" / "brain.sqlite"
 
 
 @st.cache_resource
-class _LazyDB:
-    """Lazy-Initialisierung damit st.secrets erst bei Bedarf gelesen wird."""
-    _store = None
-    _chroma = None
-
-    @staticmethod
-    def store():
-        if _LazyDB._store is None:
-            db = str(_DEFAULT_DB)
-            try:
-                db = st.secrets.get("db_path", str(_DEFAULT_DB))
-            except Exception:
-                pass
-            _LazyDB._store = EngramStore(db)
-        return _LazyDB._store
-
-    @staticmethod
-    def chroma():
-        if _LazyDB._chroma is None:
-            p = Path(str(_DEFAULT_DB)).parent / "chroma"
-            _LazyDB._chroma = ChromaStore(str(p))
-        return _LazyDB._chroma
+def _store():
+    return EngramStore(str(_DEFAULT_DB))
 
 
 @st.cache_resource
+def _chroma():
+    p = Path(str(_DEFAULT_DB)).parent / "chroma"
+    return ChromaStore(str(p))
+
+
+_retriever_cache = None
 def _retriever():
-    return Retriever(_LazyDB.store(), _LazyDB.chroma())
+    global _retriever_cache
+    if _retriever_cache is None:
+        _retriever_cache = Retriever(_store(), _chroma())
+    return _retriever_cache
 
 
 @st.cache_resource
@@ -61,18 +51,18 @@ def _scorer():
 
 @st.cache_resource
 def _healer():
-    return ErrorHealer(_LazyDB.store())
+    return ErrorHealer(_store())
 
 
 st.set_page_config(page_title="Second Brain Dashboard", layout="wide")
-st.title("🧠 2.Brain v0.3.0")
+st.title("🧠 2.Brain v0.3.1")
 
 page = st.sidebar.radio("Seite", ["Übersicht", "Engramme", "Suche", "Graph", "Heal-Log", "Neural Scorer"])
 
 
 if page == "Übersicht":
-    store = _LazyDB.store()
-    engrams = store.get_all(limit=1000)
+    store = _store()
+    engrams = store.get_all(limit=10000)
     confirmed = sum(1 for e in engrams if e.correctness.confirmed)
     unconfirmed = len(engrams) - confirmed
     avg_conf = sum(e.compute_confidence() for e in engrams) / max(1, len(engrams))
@@ -100,12 +90,12 @@ if page == "Übersicht":
                 if st.button("Auto-Fix", key=f"af_{eg.id}"):
                     eg.auto_fix_grounding()
                     store.save(eg)
-                    st.success("Fixed!")
+                    st.experimental_rerun()
 
 
 elif page == "Engramme":
-    store = _LazyDB.store()
-    st.subheader("Alle Engramme")
+    store = _store()
+    st.subheader("Alle Engramme (max 1000)")
     tag_filter = st.text_input("Filter tags")
     source_filter = st.selectbox("Source", ["alle", "user", "agent", "web", "file", "system"])
     for eg in store.get_all(limit=1000):
@@ -135,34 +125,37 @@ elif page == "Engramme":
 
 elif page == "Suche":
     st.subheader("Hybrid Search (Semantic + Keyword)")
-    query = st.text_input("Query")
+    query = st.text_input("Query", placeholder="Suchbegriff eingeben...")
     mode = st.radio("Modus", ["Hybrid", "Keyword", "Semantic"], horizontal=True)
     if st.button("Suchen") and query:
         ret = _retriever()
         results = ret.hybrid_retrieve(query, limit=10) if mode == "Hybrid" else \
                   ret.semantic_retrieve(query, limit=10) if mode == "Semantic" else \
                   ret.retrieve(query, limit=10)
+        if not results:
+            st.info("Keine Ergebnisse gefunden.")
         for r in results:
             eg = r["engram"]
             with st.container():
                 st.markdown(f"**{eg.content[:200]}...**")
-                st.write(f"Score: {r['score']:.3f} | Match: {r['match_type']} | Conf: {eg.compute_confidence():.2f}")
+                st.write(f"Score: `{r['score']:.3f}` | Match: `{r['match_type']}` | Conf: `{eg.compute_confidence():.2f}`")
                 c1, c2 = st.columns(2)
                 if c1.button("✅ Confirm", key=f"sc_{eg.id}"):
                     eg.correctness.confirm("user")
-                    _LazyDB.store().save(eg)
-                    c1.success("Confirmed")
+                    _store().save(eg)
+                    st.success("Confirmed")
                 if c2.button("❌ Reject", key=f"sr_{eg.id}"):
                     eg.correctness.reject("user")
-                    _LazyDB.store().save(eg)
-                    c2.warning("Rejected")
+                    _store().save(eg)
+                    st.warning("Rejected")
 
 
 elif page == "Graph":
     st.subheader("Graph-Visualisierung")
     graph_html_path = Path(str(_DEFAULT_DB)).parent / "graph_view.html"
     if st.button("Graph neu generieren"):
-        path = generate_graph_html(_LazyDB.store(), str(graph_html_path))
+        with st.spinner("Generiere Graph..."):
+            path = generate_graph_html(_store(), str(graph_html_path))
         st.success(f"Graph generiert: {path}")
     if graph_html_path.exists():
         with open(graph_html_path, "r", encoding="utf-8") as f:
@@ -199,7 +192,7 @@ elif page == "Heal-Log":
 elif page == "Neural Scorer":
     st.subheader("Neural Scorer Training")
     scorer = _scorer()
-    store = _LazyDB.store()
+    store = _store()
     engrams = store.get_all(limit=10000)
     labeled = [e for e in engrams if e.correctness.confirmed or e.correctness.rejections > 0]
     st.write(f"Labelled Engramme: **{len(labeled)}**")
@@ -207,7 +200,7 @@ elif page == "Neural Scorer":
         if len(labeled) < 2:
             st.error("Mindestens 2 labelierte Engramme nötig (confirm + reject).")
         else:
-            with st.spinner("Training..."):
+            with st.spinner("Training läuft..."):
                 result = scorer.train(labeled, epochs=30)
             st.json(result)
             st.success("Training abgeschlossen!")