Phase 3f complete: Advanced Memory Management (Steps 64-67)

Step 64: AnnotationValidator — @Deallocate missing-intent, @Owner(Single) alias detection, parent/child conflict (5/5 tests)
Step 65: MemoryStrategyInference — language defaults, per-function pattern analysis, confidence scores (5/5 tests)
Step 66: CrossLanguageProjector — deep-copy AST projection, annotation-aware CppGenerator (shared_ptr/unique_ptr) (5/5 tests)
Step 67: Optimization annotations — HotCold, Inline, Pure, ConstExpr with C++ attribute generation (9/9 tests)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

editor/src/ast/Annotation.h

@@ -107,8 +107,8 @@ class AllocateAnnotation : public Annotation {
 public:
     std::string strategy;  // "Static", "Register", "Allocator" for allocation strategies
     std::string allocationPattern;
-    AllocateAnnotation() { 
-        conceptType = "AllocateAnnotation"; 
+    AllocateAnnotation() {
+        conceptType = "AllocateAnnotation";
         strategy = "Static";
     }
     AllocateAnnotation(const std::string& id, const std::string& strategy_val)
@@ -117,3 +117,27 @@ public:
         this->conceptType = "AllocateAnnotation";
     }
 };
+
+// Optimization annotations (Step 67)
+
+class HotColdAnnotation : public Annotation {
+public:
+    std::string hint;  // "Hot" or "Cold"
+    HotColdAnnotation() { conceptType = "HotColdAnnotation"; }
+};
+
+class InlineAnnotation : public Annotation {
+public:
+    std::string mode;  // "Always", "Never", "Hint"
+    InlineAnnotation() { conceptType = "InlineAnnotation"; }
+};
+
+class PureAnnotation : public Annotation {
+public:
+    PureAnnotation() { conceptType = "PureAnnotation"; }
+};
+
+class ConstExprAnnotation : public Annotation {
+public:
+    ConstExprAnnotation() { conceptType = "ConstExprAnnotation"; }
+};