chore(ruff) ruff v0.12 aggressive fixes

uv run ruff check --select ALL . --fix --unsafe-fixes --preview --show-fixes; uv run ruff format .

Fixed 6 errors:
- src/tmuxp/__init__.py:
    1 × RUF100 (unused-noqa)
- src/tmuxp/workspace/builder.py:
    1 × ISC003 (explicit-string-concatenation)
    1 × EM101 (raw-string-in-exception)
- src/tmuxp/workspace/finders.py:
    1 × ISC003 (explicit-string-concatenation)
- src/tmuxp/workspace/validation.py:
    2 × ISC003 (explicit-string-concatenation)

Found 1116 errors (6 fixed, 1110 remaining).

Author: tony

src/tmuxp/__init__.py

@@ -1,4 +1,3 @@
-# flake8: NOQA: F401
 """tmux session manager.
 
 :copyright: Copyright 2013- Tony Narlock.

src/tmuxp/workspace/builder.py

@@ -240,9 +240,12 @@ def build(self, session: Session | None = None, append: bool = False) -> None:
         """
         if not session:
             if not self.server:
-                raise exc.TmuxpException(
+                msg = (
                     "WorkspaceBuilder.build requires server to be passed "
-                    + "on initialization, or pass in session object to here.",
+                    "on initialization, or pass in session object to here."
+                )
+                raise exc.TmuxpException(
+                    msg,
                 )
             new_session_kwargs = {}
             if "start_directory" in self.session_config:

src/tmuxp/workspace/finders.py

@@ -194,7 +194,7 @@ def find_workspace_file(
             if not candidates:
                 file_error = (
                     "workspace-file not found "
-                    + f"in workspace dir (yaml/yml/json) {workspace_dir} for name"
+                    f"in workspace dir (yaml/yml/json) {workspace_dir} for name"
                 )
         else:
             candidates = [

src/tmuxp/workspace/validation.py

@@ -50,8 +50,8 @@ class InvalidPluginsValidationError(SchemaValidationError):
     def __init__(self, plugins: t.Any, *args: object, **kwargs: object) -> None:
         return super().__init__(
             '"plugins" only supports list type. '
-            + f" Received {type(plugins)}, "
-            + f"value: {plugins}",
+            f" Received {type(plugins)}, "
+            f"value: {plugins}",
             *args,
             **kwargs,
         )