refactor(shell): collapse managed tree back into stubs

Drop ~/.config/zsh/{env,interactive,login} modules. PATH and local.zsh
live in .zshenv; interactive UX is a single .zshrc again. Deploy only
installs the three stubs and removes obsolete trees/examples.

install.sh

@@ -243,7 +243,7 @@ fi
 ZSH="$HOME/.oh-my-zsh"
 EASYZSH_RAW_BASE="${EASYZSH_RAW_BASE:-https://git.miomio.moe/mio/easyzsh/raw/branch/master}"
 
-# Stage managed shell layout (stubs + ~/.config/zsh modules), then deploy.sh installs it.
+# Stage shell stubs, then deploy.sh installs them.
 # On download failure, leave existing ~/.zshrc and ~/.zshenv untouched.
 easyzsh_stage=$(mktemp -d "$HOME/.easyzsh-stage.XXXXXX")
 zshrc_download=$(mktemp "$HOME/.zshrc.download.XXXXXX")
@@ -260,16 +260,12 @@ download_easyzsh_file() {
     fi
 }
 
-echo -e "Downloading easyzsh shell layout\n"
+echo -e "Downloading easyzsh shell stubs\n"
 for rel in \
     deploy.sh \
     .zshenv \
     .zshrc \
-    .zprofile \
-    config/env/00-path.zsh \
-    config/interactive/10-bootstrap.zsh \
-    config/interactive/20-post-omz.zsh \
-    local.zsh.example
+    .zprofile
 do
     download_easyzsh_file "$rel"
 done
@@ -286,7 +282,7 @@ else
     git clone --depth=1 https://github.com/ohmyzsh/ohmyzsh.git "$ZSH"
 fi
 
-# deploy.sh backs up existing stubs and never overwrites ~/.config/zsh/local/
+# deploy.sh backs up existing stubs and never overwrites ~/.config/zsh/local.zsh
 bash "$easyzsh_stage/deploy.sh" --migrate-zprofile
 trap - EXIT
 rm -rf "$easyzsh_stage"