docs: add new api references

docs/api-reference/proxy-rotation.md

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+---
+search:
+  exclude: true
+---
+
+# Proxy Rotation
+
+The `ProxyRotator` class provides thread-safe proxy rotation for any fetcher or session.
+
+You can import it directly like below:
+
+```python
+from scrapling.fetchers import ProxyRotator
+```
+
+## ::: scrapling.engines.toolbelt.proxy_rotation.ProxyRotator
+    handler: python
+    :docstring:

docs/api-reference/response.md

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+search:
+  exclude: true
+---
+
+# Response Class
+
+The `Response` class wraps HTTP responses returned by all fetchers, providing access to status, headers, body, cookies, and a `Selector` for parsing.
+
+You can import the `Response` class like below:
+
+```python
+from scrapling.engines.toolbelt.custom import Response
+```
+
+## ::: scrapling.engines.toolbelt.custom.Response
+    handler: python
+    :docstring:

docs/api-reference/spiders.md

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+search:
+  exclude: true
+---
+
+# Spider Classes
+
+Here's the reference information for the spider framework classes' parameters, attributes, and methods.
+
+You can import them directly like below:
+
+```python
+from scrapling.spiders import Spider, Request, CrawlResult, SessionManager, Response
+```
+
+## ::: scrapling.spiders.Spider
+    handler: python
+    :docstring:
+
+## ::: scrapling.spiders.Request
+    handler: python
+    :docstring:
+
+## Result Classes
+
+## ::: scrapling.spiders.result.CrawlResult
+    handler: python
+    :docstring:
+
+## ::: scrapling.spiders.result.CrawlStats
+    handler: python
+    :docstring:
+
+## ::: scrapling.spiders.result.ItemList
+    handler: python
+    :docstring:
+
+## Session Management
+
+## ::: scrapling.spiders.session.SessionManager
+    handler: python
+    :docstring: