add ais (rust fuzzy selector) and atproto plugin

.zsh/plugin/ais.zsh

@@ -0,0 +1,42 @@
+# ais - ai selector (Rust)
+# unified fuzzy finder replacing cdselect/fileselect/histselect
+# requires: ais binary in PATH
+
+if ! command -v ais &>/dev/null; then
+  return
+fi
+
+# C-j: directory selector
+ais-cd() {
+  local dir=$(ais cd)
+  if [[ -n "$dir" ]]; then
+    cd "$dir"
+  fi
+  zle reset-prompt
+}
+zle -N ais-cd
+bindkey '^j' ais-cd
+
+# C-f: file selector -> insert into buffer
+ais-file() {
+  local file=$(ais file)
+  if [[ -n "$file" ]]; then
+    BUFFER+="$file"
+    CURSOR=${#BUFFER}
+  fi
+  zle reset-prompt
+}
+zle -N ais-file
+bindkey '^f' ais-file
+
+# C-r: history selector -> insert into buffer
+ais-hist() {
+  local cmd=$(ais hist)
+  if [[ -n "$cmd" ]]; then
+    BUFFER="$cmd"
+    CURSOR=${#BUFFER}
+  fi
+  zle reset-prompt
+}
+zle -N ais-hist
+bindkey '^r' ais-hist