Rename existence plugins to check names

Author: marcofortina

docs/guides/account-access.md

@@ -7,8 +7,8 @@ SPDX-License-Identifier: AGPL-3.0-or-later
 
 Automax includes account access plugins for common Linux operator tasks:
 
-- `identity.user.exists`, `identity.user.lock`, `identity.user.unlock`, `identity.user.set_password`
-- `identity.group.exists`
+- `identity.user.check`, `identity.user.lock`, `identity.user.unlock`, `identity.user.set_password`
+- `identity.group.check`
 - `security.ssh.authorized_key.add`
 - `security.sudo.dropin`
 

docs/guides/ssh-smoke.md

@@ -43,8 +43,8 @@ The default smoke is non-destructive and should be safe for an unprivileged
 remote user. It covers:
 
 - `command.remote.run`
-- `fs.dir.create`, `fs.dir.remove`, `fs.dir.exists`, `fs.dir.wait`
-- `fs.file.exists`, `fs.file.wait`, `fs.cd`, `fs.file.write`, `fs.file.read`, `fs.object.stat`
+- `fs.dir.create`, `fs.dir.remove`, `fs.dir.check`, `fs.dir.wait`
+- `fs.file.check`, `fs.file.wait`, `fs.cd`, `fs.file.write`, `fs.file.read`, `fs.object.stat`
 - `fs.file.line`, `fs.file.replace`, `fs.object.copy`, `fs.object.move`, `fs.symlink.create`, `fs.symlink.remove`
 - `fs.object.find`, `fs.permission.mode`
 - `data.archive.tar.create`, `data.archive.tar.extract`, `data.archive.zip.create`, `data.archive.zip.extract`

docs/plugins/filesystem.md

@@ -18,17 +18,17 @@ only, including broken symlinks.
 ```text
 fs.dir.create      # create a real directory
 fs.dir.remove      # remove a real directory; recursive=true removes non-empty trees
-fs.dir.exists      # report whether a real directory exists; fail on wrong type
+fs.dir.check      # report whether a real directory exists; fail on wrong type
 fs.dir.wait        # wait for a real directory to be present or absent
 
 fs.file.create     # create a real regular file
 fs.file.remove     # remove a real regular file; fail on directories/symlinks
-fs.file.exists     # report whether a real regular file exists; fail on wrong type
+fs.file.check     # report whether a real regular file exists; fail on wrong type
 fs.file.wait       # wait for a real regular file to be present or absent
 
 fs.symlink.create  # create or update a symlink
 fs.symlink.remove  # remove a symlink; fail on files/directories
-fs.symlink.exists  # report whether a symlink exists; fail on wrong type
+fs.symlink.check  # report whether a symlink exists; fail on wrong type
 fs.symlink.wait    # wait for a symlink to be present or absent
 ```