feat: add crash stack snapshots and context menu annotations

kernel/src/Sched/CrashReport.hpp

@@ -11,6 +11,7 @@
 namespace CrashReport {
 
 static constexpr int MaxReports = 8;
+static constexpr int StackSnapshotWords = 8;
 
 struct Report {
     int pid;
@@ -24,6 +25,8 @@ struct Report {
     uint64_t codeSegment;
     uint64_t flags;
     uint64_t stackSegment;
+    uint64_t stackWords[StackSnapshotWords];
+    uint8_t stackWordCount;
 
     // Page fault error code bits (vector 0xE / page fault only)
     uint8_t pfPresent : 1;