summary system backend implementation

packages/shared/src/config/constants.js

@@ -69,6 +69,11 @@ const SQLITE = {
     DEFAULT_PATH: './data/nexusai.db'
 }
 
+const SUMMARIES = {
+    THRESHOLD_TOKENS:   5000,   //trigger summary when session hits this many tokens
+    MAX_SUMMARY_TOKENS: 800,    //if existing summary exceeds this, create new instead of update
+    MIN_EPISODES_SINCE: 5,      // don't resummarize until N new episodes since last summary
+}
 module.exports = {
     QDRANT,
     COLLECTIONS,
@@ -79,5 +84,6 @@ module.exports = {
     LLAMACPP,
     INFERENCE_DEFAULTS,
     SQLITE,
-    ORCHESTRATION
+    ORCHESTRATION,
+    SUMMARIES
 };