Add 'annotate-usecode' command to import USECODE IR JSON annotations

- Introduced a new command 'annotate-usecode' to import USECODE IR JSON annotation hints as Ghidra comments on compiled anchors.
- Added argument parsing for multiple IR JSON files, comment type selection, and a dry-run option.
- Implemented logic to read annotation records from the provided IR files and set comments on the corresponding addresses in Ghidra.
- Enhanced JSON schema to include response structure for the new command.

_tmp_targets.py

@@ -0,0 +1,19 @@
+import csv, pathlib
+p = pathlib.Path('USECODE/EUSECODE_extracted/class_event_index.tsv')
+targets = {189,190,191,272,273,283,285}
+rows = [r for r in csv.DictReader(p.open('r', encoding='utf-8'), delimiter='\t') if int(r['entry_index'], 0) in targets]
+for eid in sorted(targets):
+    print(f'ENTRY {eid}')
+    for r in rows:
+        if int(r['entry_index'], 0) != eid:
+            continue
+        length = (r.get('derived_body_length') or '').strip()
+        if not length:
+            continue
+        try:
+            n = int(length, 0)
+        except Exception:
+            continue
+        if n == 0:
+            continue
+        print(f"  slot {r['slot']} {r['event_name_hint']}: start={r['derived_body_start']} end={r['derived_body_end']} len={r['derived_body_length']} raw={r['raw_event_entry_word']} template={r.get('repeated_template_status','')}")