feat(files): add files param to agent.kickoff() and async aliases

lib/crewai/tests/cassettes/llms/TestBedrockMultimodalIntegration.test_analyze_pdf.yaml

@@ -40,4 +40,45 @@ interactions:
     status:
       code: 200
       message: OK
+- request:
+    body: '{"messages": [{"role": "user", "content": [{"text": "What type of document
+      is this? Answer in one word."}, {"document": {"name": "document", "format":
+      "pdf", "source": {"bytes": "JVBERi0xLjQKMSAwIG9iaiA8PCAvVHlwZSAvQ2F0YWxvZyAvUGFnZXMgMiAwIFIgPj4gZW5kb2JqCjIgMCBvYmogPDwgL1R5cGUgL1BhZ2VzIC9LaWRzIFszIDAgUl0gL0NvdW50IDEgPj4gZW5kb2JqCjMgMCBvYmogPDwgL1R5cGUgL1BhZ2UgL1BhcmVudCAyIDAgUiAvTWVkaWFCb3ggWzAgMCA2MTIgNzkyXSA+PiBlbmRvYmoKeHJlZgowIDQKMDAwMDAwMDAwMCA2NTUzNSBmCjAwMDAwMDAwMDkgMDAwMDAgbgowMDAwMDAwMDU4IDAwMDAwIG4KMDAwMDAwMDExNSAwMDAwMCBuCnRyYWlsZXIgPDwgL1NpemUgNCAvUm9vdCAxIDAgUiA+PgpzdGFydHhyZWYKMTk2CiUlRU9GCg=="}}}]}],
+      "inferenceConfig": {}}'
+    headers:
+      Content-Length:
+      - '646'
+      Content-Type:
+      - !!binary |
+        YXBwbGljYXRpb24vanNvbg==
+      User-Agent:
+      - X-USER-AGENT-XXX
+      amz-sdk-invocation-id:
+      - AMZ-SDK-INVOCATION-ID-XXX
+      amz-sdk-request:
+      - !!binary |
+        YXR0ZW1wdD0x
+      authorization:
+      - AUTHORIZATION-XXX
+      x-amz-date:
+      - X-AMZ-DATE-XXX
+    method: POST
+    uri: https://bedrock-runtime.us-east-1.amazonaws.com/model/anthropic.claude-3-haiku-20240307-v1%3A0/converse
+  response:
+    body:
+      string: '{"metrics":{"latencyMs":291},"output":{"message":{"content":[{"text":"Incomplete"}],"role":"assistant"}},"stopReason":"end_turn","usage":{"inputTokens":57,"outputTokens":5,"serverToolUsage":{},"totalTokens":62}}'
+    headers:
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '211'
+      Content-Type:
+      - application/json
+      Date:
+      - Fri, 23 Jan 2026 06:02:32 GMT
+      x-amzn-RequestId:
+      - X-AMZN-REQUESTID-XXX
+    status:
+      code: 200
+      message: OK
 version: 1