rename symbol under cursor ('n') + save ('Ctrl+S')

- 'n' on the token under the cursor opens a rename prompt prefilled with the
  current name. The symbol is classified and routed to the right rename batch:
    * resolves to a function start        -> func
    * decompiler ref (global/string)      -> data
    * pseudocode token, not a ref         -> local (Hex-Rays lvar)
    * disasm var_/arg_                    -> stack
  tool errors (e.g. name collisions) are surfaced in the status line.
- after a rename: force_recompile + cache invalidation, reload the current views
  (preserving cursor), update the renamed function's row in place (avoids racing
  the initial stream), and update nav history names.
- 'Ctrl+S' persists the IDB (idb_save); edits mark the session dirty.
- 'n'/'N' search-repeat dropped for 'n'=rename (repeat stays on '/'+Enter / '?').
- verified live: func rename (list + disasm update), local var rename (pseudocode
  update), save. pilot suite 44/44; domain 17/17.

1 files changed, 13 insertions, 0 deletions

diff --git a/idatui/domain.py b/idatui/domain.py
index 6578932..b219bbe 100644
--- a/idatui/domain.py
+++ b/idatui/domain.py
@@ -199,6 +199,19 @@ class FunctionIndex:
         with self._lock:
             return list(self._funcs)
 
+    def update_name(self, addr: int, new_name: str) -> None:
+        """Reflect a rename in the cached index (Func is frozen -> replace)."""
+        with self._lock:
+            old = self._by_addr.get(addr)
+            if old is None:
+                return
+            nf = Func(addr=old.addr, name=new_name, size=old.size)
+            self._by_addr[addr] = nf
+            try:
+                self._funcs[self._funcs.index(old)] = nf
+            except ValueError:
+                pass
+
 
 # --------------------------------------------------------------------------- #
 # Disassembly model: block-cached windowed listing for ONE function