Added the Scene Manager (Libreflow casting, load, update, assetize)

New Scene Manager panel (WTD tab) talking to a running Libreflow through
its IPC server and the wtdcmds commands: pick the shot context, read the
casting, link the latest available publishes (overrides for chars and
props, collection instances otherwise), flag out-of-date versions in red,
update / roll back / remove loaded assets, and publish local collections
as assets. Requests run in the background. Settings in config.py
(SCENE_MANAGER_*, LIBREFLOW_*).

The Shot Viewer groups rigs loaded by the Scene Manager by asset type.
The manifest declares the network permission.

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

config.py

@@ -243,6 +243,8 @@ SHOT_VIEWER_RIG_GROUPS = {
     "Characters": r"(?i)^(?:chr|char)[_-]",
     "Props": r"(?i)^(?:prp|prop)[_-]",
 }
+# Rigs loaded by the Scene Manager are grouped by their Libreflow asset type first.
+SHOT_VIEWER_ASSET_TYPE_GROUPS = {"chars": "Characters", "props": "Props"}
 
 # Shots added by the shot viewer. TODO: confirm with production.
 SHOT_NAME_FORMAT = "sh{:04d}"
@@ -259,6 +261,28 @@ SHOT_NUMBER_STEP = 10
 SHOT_FRAME_START = 1001
 SHOT_DEFAULT_DURATION = 48
 
+# --------------------------------------------------------------------------- #
+# Scene Manager (Libreflow)
+# --------------------------------------------------------------------------- #
+# Address and token of the Libreflow IPC server (kabaret.ipc).
+LIBREFLOW_SERVER_FILE = "~/.kabaret/ipc/server.json"
+# Seconds to wait for an answer (the server itself gives up after 10 s).
+LIBREFLOW_TIMEOUT = 15
+
+# Published file loaded for each asset type ("*" = the others): ordered
+# "task/file.ext" glob patterns, the first file of the asset matching one is loaded.
+SCENE_MANAGER_FILE_PATTERNS = {"*": ["rigging/*.blend", "modeling/*.blend"]}
+# Collection linked from an asset file: the first of these names found ({asset}
+# = asset name), else the file's single top-level collection.
+SCENE_MANAGER_COLLECTION_NAMES = ["COL_{asset}", "{asset}"]
+# How an asset type is brought in: "OVERRIDE" (library override, posable) or
+# "INSTANCE" (collection instance). "*" = the other types. TODO: confirm type names.
+SCENE_MANAGER_LINK_MODES = {"chars": "OVERRIDE", "props": "OVERRIDE", "*": "INSTANCE"}
+# Collection gathering the loaded assets of a type, under the scene collection.
+SCENE_MANAGER_TYPE_COLLECTION = "COL_{asset_type}"
+# Default task of the assetize dialog.
+SCENE_MANAGER_ASSETIZE_TASK = "modeling"
+
 # --------------------------------------------------------------------------- #
 # UI
 # --------------------------------------------------------------------------- #