Add selectable CASAN IDE integrations

bin/casan

@@ -42,7 +42,8 @@ casan — CASAN governance harness CLI ($(version))
 Usage: casan <command> [args]
 
 Commands:
-  init [--level 1..4] [--project id]   Adopt CASAN into THIS project (config only, hybrid model)
+  init [--client ...] [--project id]   Adopt CASAN and select Claude/Codex/VS Code integrations
+  doctor [--client ...]                Verify configured hooks, pin, adapters, and VS Code route
   level <show|set 1..4>                Show / change the project's packaging level
   verify-harness                       Verify the resolved harness matches the project pin
   run <in> <out> [action] [-- cmd...]  Run a step through the harness (H4→H5→H6→exec→H4-out)
@@ -74,6 +75,9 @@ case "$cmd" in
   verify-harness)
     [[ -f "$DEVKIT_ROOT/casan-init.py" ]] || { echo "casan: verify-harness requires the casan-devkit package" >&2; exit 1; }
     exec python3 "$DEVKIT_ROOT/casan-init.py" verify "$@" ;;
+  doctor)
+    [[ -f "$DEVKIT_ROOT/casan-init.py" ]] || { echo "casan: doctor requires the casan-devkit package" >&2; exit 1; }
+    exec python3 "$DEVKIT_ROOT/casan-init.py" doctor "$@" ;;
   level)
     [[ -f "$DEVKIT_ROOT/casan-init.py" ]] || { echo "casan: level requires the casan-devkit package" >&2; exit 1; }
     sub="${1:-show}"; shift || true