feat: Add otel logger

[wangyb-A]

Issue #, if available: close #385

Description of changes:

• Revert the SDK change of feat: add otel logger injection #427
• Use logger filter, instead of wrapped logger approach to inject to log records
• Use debug log level for otel plugin log

Testing

OTel log enrichment — sample output

Logs from the OtelLoggerExample-Python durable function. Each application log emitted through the root logger is automatically stamped with otel_trace_id, otel_span_id, and otel_trace_sampled. The span id tracks the active operation (invocation → step → child context → child step), all sharing one trace id.

{"timestamp": "2026-06-18T00:05:00Z", "level": "INFO", "message": "Workflow started", "logger": "root", "requestId": "6d06f4c7-eefa-45c4-9253-05d1c79d2789", "executionArn": "arn:aws:lambda:us-west-2:590183769840:function:OtelLoggerExample-Python:$LATEST/durable-execution/ca57abc9-f202-41c5-80b0-ca3f1d162763/f3d4baae-014a-340f-99ad-fef654f5369d", "otel_trace_id": "6a3336274de546f9416117dc644fe6c8", "otel_span_id": "fe45c9e995fdcc3e", "otel_trace_sampled": true}
{"timestamp": "2026-06-18T00:05:00Z", "level": "INFO", "message": "Greeting inside step", "logger": "root", "requestId": "6d06f4c7-eefa-45c4-9253-05d1c79d2789", "executionArn": "arn:aws:lambda:us-west-2:590183769840:function:OtelLoggerExample-Python:$LATEST/durable-execution/ca57abc9-f202-41c5-80b0-ca3f1d162763/f3d4baae-014a-340f-99ad-fef654f5369d", "operationName": "top-greet", "attempt": 1, "operationId": "1ced8f5be2db23a6513eba4d819c73806424748a7bc6fa0d792cc1c7d1775a97", "greeting_name": "world", "otel_trace_id": "6a3336274de546f9416117dc644fe6c8", "otel_span_id": "796a9b22593b6959", "otel_trace_sampled": true}
{"timestamp": "2026-06-18T00:05:00Z", "level": "INFO", "message": "Entering child context", "logger": "root", "requestId": "6d06f4c7-eefa-45c4-9253-05d1c79d2789", "executionArn": "arn:aws:lambda:us-west-2:590183769840:function:OtelLoggerExample-Python:$LATEST/durable-execution/ca57abc9-f202-41c5-80b0-ca3f1d162763/f3d4baae-014a-340f-99ad-fef654f5369d", "parentId": "c5faca15ac2f93578b39ef4b6bbb871bdedce4ddd584fd31f0bb66fade3947e6", "otel_trace_id": "6a3336274de546f9416117dc644fe6c8", "otel_span_id": "be02ea8c17bd3715", "otel_trace_sampled": true}
{"timestamp": "2026-06-18T00:05:00Z", "level": "INFO", "message": "Greeting inside step", "logger": "root", "requestId": "6d06f4c7-eefa-45c4-9253-05d1c79d2789", "executionArn": "arn:aws:lambda:us-west-2:590183769840:function:OtelLoggerExample-Python:$LATEST/durable-execution/ca57abc9-f202-41c5-80b0-ca3f1d162763/f3d4baae-014a-340f-99ad-fef654f5369d", "parentId": "c5faca15ac2f93578b39ef4b6bbb871bdedce4ddd584fd31f0bb66fade3947e6", "operationName": "child-greet", "attempt": 1, "operationId": "9b9a566e6a3acb025bf1e7f9316f877f4def1a4320ddf2c8674e0fa6ceea6d64", "greeting_name": "nested", "otel_trace_id": "6a3336274de546f9416117dc644fe6c8", "otel_span_id": "67fdcf54688f3644", "otel_trace_sampled": true}
{"timestamp": "2026-06-18T00:05:00Z", "level": "INFO", "message": "Leaving child context", "logger": "root", "requestId": "6d06f4c7-eefa-45c4-9253-05d1c79d2789", "executionArn": "arn:aws:lambda:us-west-2:590183769840:function:OtelLoggerExample-Python:$LATEST/durable-execution/ca57abc9-f202-41c5-80b0-ca3f1d162763/f3d4baae-014a-340f-99ad-fef654f5369d", "parentId": "c5faca15ac2f93578b39ef4b6bbb871bdedce4ddd584fd31f0bb66fade3947e6", "result": "hello nested", "otel_trace_id": "6a3336274de546f9416117dc644fe6c8", "otel_span_id": "be02ea8c17bd3715", "otel_trace_sampled": true}
{"timestamp": "2026-06-18T00:05:01Z", "level": "INFO", "message": "Workflow completed", "logger": "root", "requestId": "6d06f4c7-eefa-45c4-9253-05d1c79d2789", "executionArn": "arn:aws:lambda:us-west-2:590183769840:function:OtelLoggerExample-Python:$LATEST/durable-execution/ca57abc9-f202-41c5-80b0-ca3f1d162763/f3d4baae-014a-340f-99ad-fef654f5369d", "top": "hello world", "nested": "hello nested", "otel_trace_id": "6a3336274de546f9416117dc644fe6c8", "otel_span_id": "fe45c9e995fdcc3e", "otel_trace_sampled": true}

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[zhongkechen]

Nice. Thank you