Replace dasher-pack with unified animation-pack using original Blender bone names

addons/godot_ai/utils/mcp_startup_path.gd

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+@tool
+class_name McpStartupPath
+extends RefCounted
+
+## Branch-tag enum for `McpServerLifecycleManager.start_server`. Records
+## which arm of the spawn / adopt / drift / recover decision tree the
+## current `_enter_tree` walked. Surfaced via the startup trace log so
+## a Windows port-reservation issue or a stale-record kill can be
+## reconstructed from the editor output.
+##
+## Single-file constants, not an int enum, because the values land in
+## startup-trace text and the strings are stable across releases (the
+## CLAUDE.md "tool surface" entry references them by name).
+
+const UNSET := ""
+## Re-entrancy guard fired; this enable cycle did not spawn or adopt.
+const GUARDED := "guarded"
+## Adopted a compatible existing server (managed or external).
+const ADOPTED := "adopted"
+## Spawned a fresh server process.
+const SPAWNED := "spawned"
+## OS.create_process returned -1 or proactive Windows reservation
+## detected. Either way the spawn never produced a live process.
+const CRASHED := "crashed"
+## Windows port-exclusion check fired — port is blocked at the OS layer.
+const RESERVED := "reserved"
+## Server-command discovery returned an empty list — no .venv, no uvx,
+## no system godot-ai.
+const NO_COMMAND := "no_command"
+## Drift-recovery kill fell through; we set INCOMPATIBLE and stayed.
+const INCOMPATIBLE := "incompatible"
+## Port was free at start; this is the prelude to SPAWNED but kept as
+## a distinct path so adopt-vs-spawn is unambiguous in the trace.
+const FREE := "free"