Docs/release 0.175.0 docs (#3441)

* docs(install): note OpenAI SDK requirement openai>=1.13.3 for 0.175.0

* docs(cli): document device-code login and config reset guidance; renumber sections

* docs(flows): document conditional @start and resumable execution semantics

* docs(tasks): move max_retries to deprecation note under attributes table

* docs: provider-neutral RAG client config; entity memory batching; trigger payload note; tracing batch manager

* docs(cli): fix duplicate numbering (renumber Login/API Keys/Configuration sections)

docs/en/concepts/tasks.mdx

@@ -61,6 +61,11 @@ crew = Crew(
 | **Guardrail** _(optional)_       | `guardrail`       | `Optional[Callable]`             | Function to validate task output before proceeding to next task.                                                  |
 | **Guardrail Max Retries** _(optional)_ | `guardrail_max_retries` | `Optional[int]`     | Maximum number of retries when guardrail validation fails. Defaults to 3.                                         |
 
+<Note type="warning" title="Deprecated: max_retries">
+  The task attribute `max_retries` is deprecated and will be removed in v1.0.0.
+  Use `guardrail_max_retries` instead to control retry attempts when a guardrail fails.
+</Note>
+
 ## Creating Tasks
 
 There are two ways to create tasks in CrewAI: using **YAML configuration (recommended)** or defining them **directly in code**.
@@ -432,7 +437,7 @@ When a guardrail returns `(False, error)`:
 2. The agent attempts to fix the issue
 3. The process repeats until:
    - The guardrail returns `(True, result)`
-   - Maximum retries are reached
+   - Maximum retries are reached (`guardrail_max_retries`)
 
 Example with retry handling:
 ```python Code