merge bounded Gen2 memory projection

modules/interaction/domain/personal_memory.go

@@ -26,6 +26,12 @@ type PersonalMemoryFact struct {
 
 const personalMemoryCurrentLocation = "CURRENT_LOCATION"
 
+// personalMemoryMaxValueRunes keeps the compatibility projection bounded.
+// Canonical utterances remain complete in storage; only the rebuildable
+// cognitive context is capped so old long-form instructions cannot become a
+// provider prompt or crowd out a current household fact.
+const personalMemoryMaxValueRunes = 512
+
 // CompilePersonalMemory turns direct, first-person human statements into a
 // small typed context. It deliberately preserves preferences as statements
 // rather than pretending that an arbitrary preference is a verified fact.
@@ -119,7 +125,7 @@ func personalPreference(message string) string {
 		}
 		value := strings.TrimSpace(lower[index+len(cue):])
 		value = strings.Trim(value, " .,!?:;—-")
-		if len([]rune(value)) >= 2 {
+		if len([]rune(value)) >= 2 && len([]rune(value)) <= personalMemoryMaxValueRunes {
 			return value
 		}
 	}
@@ -144,7 +150,7 @@ func personalPreference(message string) string {
 				separatorWidth = len("—")
 			}
 			value := strings.Trim(strings.TrimSpace(statement[separator+separatorWidth:]), " .,!?:;—-")
-			if key != "" && len([]rune(value)) >= 2 {
+			if key != "" && len([]rune(value)) >= 2 && len([]rune(value)) <= personalMemoryMaxValueRunes {
 				return key + " — " + value
 			}
 		}

modules/interaction/domain/personal_memory_test.go

@@ -28,3 +28,14 @@ func TestCompilePersonalMemoryDoesNotTreatThirdPartyStatementAsPersonalFact(t *t
 		t.Fatalf("ordinary factual question became personal memory: %+v", memory)
 	}
 }
+
+func TestCompilePersonalMemoryBoundsLongRememberedValues(t *testing.T) {
+	longValue := strings.Repeat("x", 513)
+	memory := CompilePersonalMemory([]interaction.HumanUtterance{{
+		Content:              "запомни: мой тестовый цвет — " + longValue,
+		ReceivedAtUnixMillis: 100,
+	}})
+	if memory.ContextText() != "" {
+		t.Fatalf("long remembered value leaked into cognitive context: %q", memory.ContextText())
+	}
+}