chore: merge main into gl/chore/refactor-cli

Resolve conflicts from origin/main: relocate new CLI additions
(checkpoint_tui, deploy/validate, remote_template, content_crew
templates) into lib/cli, rewrite imports for the standalone
crewai-cli package, port main's trained_agents_file param and
predeploy validation, and bump python-dotenv/pydantic in
crewai-cli to match crewai's constraints. Add the new
mark_ephemeral_trace_batch_as_failed method to the relocated
crewai.plus_api. Update tests for the new payload field, deploy
--skip-validate kwarg, and crewai_cli import paths.

lib/cli/pyproject.toml

@@ -9,7 +9,7 @@ authors = [
 requires-python = ">=3.10, <3.14"
 dependencies = [
     "click~=8.1.7",
-    "pydantic~=2.11.9",
+    "pydantic>=2.11.9,<2.13",
     "pydantic-settings~=2.10.1",
     "appdirs~=1.4.4",
     "httpx~=0.28.1",
@@ -18,7 +18,7 @@ dependencies = [
     "tomli~=2.0.2",
     "tomli-w~=1.1.0",
     "packaging>=23.0",
-    "python-dotenv~=1.1.1",
+    "python-dotenv>=1.2.2,<2",
     "uv~=0.9.13",
     "portalocker~=2.7.0",
 ]