Preferences: toggle slot numbers on wiresheet, off by default

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app_state.py

@@ -8,7 +8,7 @@ so later rebinding would only ever be seen by the module that did it.
 import configparser
 import os
 
-VERSION = "0.0.0.172"
+VERSION = "0.0.0.173"
 PROPERTIES_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "editor.properties")
 DEFAULT_GRID_SIZE = 10
 DEFAULT_ADD_TIMESTAMP = True
@@ -119,6 +119,7 @@ def load_preferences():
     sedona_home = ""
     trace_dasp = False
     lazy_loading = True
+    show_slot_numbers = False
 
     if os.path.exists(PROPERTIES_FILE):
         try:
@@ -132,6 +133,7 @@ def load_preferences():
             sedona_home = config.get("Editor", "sedona.home", fallback="").strip()
             trace_dasp = config.getboolean("Editor", "trace_dasp", fallback=False)
             lazy_loading = config.getboolean("Editor", "lazy_loading", fallback=True)
+            show_slot_numbers = config.getboolean("Editor", "show_slot_numbers", fallback=False)
         except Exception:
             pass
     else:
@@ -153,7 +155,7 @@ def load_preferences():
         MIN_ALLOWED_LEFT_PANE_WIDTH, min(MAX_ALLOWED_LEFT_PANE_WIDTH, left_pane_width)
     )
     return (sedona_home, grid_size, add_timestamp, box_width, left_pane_width, trace_dasp,
-            lazy_loading)
+            lazy_loading, show_slot_numbers)
 
 
 def save_preferences():
@@ -174,6 +176,7 @@ def save_preferences():
         "left_pane_width": str(LEFT_PANE_WIDTH),
         "trace_dasp": str(TRACE_DASP),
         "lazy_loading": str(LAZY_LOADING),
+        "show_slot_numbers": str(SHOW_SLOT_NUMBERS),
     }
     with open(PROPERTIES_FILE, "w") as configfile:
         config.write(configfile)
@@ -265,6 +268,7 @@ def base_window_title_live():
 
 # LAZY_LOADING: on connect, read components as folders are opened (True) or the whole
 # app from app.sab first (False). Read at each connect, so a change takes effect on the next.
+# SHOW_SLOT_NUMBERS: prefix wiresheet slot rows with their slot id ("03. out").
 (SEDONA_HOME, GRID_SIZE, ADD_TIMESTAMP, BOX_WIDTH, LEFT_PANE_WIDTH, TRACE_DASP,
- LAZY_LOADING) = load_preferences()
+ LAZY_LOADING, SHOW_SLOT_NUMBERS) = load_preferences()
 LAST_PALETTE_KIT = load_last_palette_kit()