Added Rename and Shot Viewer tools

Rename panel: batch rename selected objects (or their materials) as
prefix_name_side_number_suffix. Numbering continues after existing names,
object data follows its object, and a preview shows the result.

Shot Viewer (button in the Tools panel): opens a window with its own
workspace showing the shots (sequencer scene strips) through their camera,
with the edit's sequencer at the bottom. Scrubbing the edit switches shots,
playing a shot moves the edit playhead, Loop Shot loops playback on the
shot. Shots can be added and deleted, and character / prop rigs selected
in pose mode from the sidebar.

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

config.py

@@ -207,6 +207,49 @@ DUPLICATE_NAME_TYPES = [
     "node_groups",
 ]
 
+# --------------------------------------------------------------------------- #
+# Rename tool
+# --------------------------------------------------------------------------- #
+# Names are built as {prefix}_{name}_{side}_{number}_{suffix}, empty parts dropped.
+# "By Type" prefixes come from OBJECT_PREFIXES / DATABLOCK_PREFIXES.
+RENAME_SEPARATOR = "_"
+RENAME_PADDING = 3
+
+# Orientation tokens. TODO: confirm with production.
+RENAME_SIDES = ["center", "left", "right", "front", "back", "top", "bottom"]
+
+# "By Type" suffix per object type ("MATERIAL" for materials). TODO: confirm with production.
+RENAME_TYPE_SUFFIXES = {
+    "MESH": "mesh",
+    "CURVE": "curve",
+    "SURFACE": "surface",
+    "FONT": "text",
+    "EMPTY": "empty",
+    "ARMATURE": "rig",
+    "LATTICE": "lattice",
+    "GREASEPENCIL": "gp",
+    "CAMERA": "cam",
+    "LIGHT": "light",
+    "MATERIAL": "mat",
+}
+
+# --------------------------------------------------------------------------- #
+# Shot viewer
+# --------------------------------------------------------------------------- #
+# Groups of the rig quick selection: an armature goes to the first group whose
+# pattern matches its name, one of its collections or its library file name.
+# Unmatched armatures are listed under "Other". TODO: confirm with production.
+SHOT_VIEWER_RIG_GROUPS = {
+    "Characters": r"(?i)^(?:chr|char)[_-]",
+    "Props": r"(?i)^(?:prp|prop)[_-]",
+}
+
+# Shots added by the shot viewer. TODO: confirm with production.
+SHOT_NAME_FORMAT = "sh{:04d}"
+SHOT_NUMBER_STEP = 10
+SHOT_FRAME_START = 101
+SHOT_DEFAULT_DURATION = 48
+
 # --------------------------------------------------------------------------- #
 # UI
 # --------------------------------------------------------------------------- #