fix(agent): add Chinese reasoning tags to think block filters (#43827)

[kyssta-exe]

Fixes #43827. MiniMax M3 emits Chinese reasoning tokens (思考/反思/推理/推敲) that were never added to the three hard-coded tag filter lists consulted by all consumer code paths (agent_runtime_helpers.py strip_think_blocks, cli.py streaming filter, gateway/stream_consumer.py). Added the Chinese tokens to all three locations so they are stripped during streaming and from final responses, matching the existing English tag filtering behavior.

[alt-glitch]

Duplicate of #43836 — both add the four MiniMax-M3 Chinese reasoning tags (思考/反思/推理/推敲) to the same three think-block filter sites (agent_runtime_helpers, cli, gateway/stream_consumer) for #43827. #43836 is the earliest open PR. See also #43839 (same goal, shared-scrubber mechanism).

[tonydwb]

Code Review Summary

Verdict: Approved

Fix: Add Chinese reasoning tags to think block filters (#43827)

• Problem: MiniMax M3 uses Chinese plain-text reasoning tokens (思考, 反思, 推理, 推敲) instead of or alongside English ``. These were not being stripped from agent output.
• Fix: Adds the four Chinese tokens to:
  • strip_think_blocks() in agent_runtime_helpers.py
  • _stream_delta tag lists in cli.py
  • _OPEN_THINK_TAGS/_CLOSE_THINK_TAGS in gateway/stream_consumer.py
• Clean, targeted addition — no logic changes, only tag list extensions. Covers both the think-block stripping path and the streaming suppression path.

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Reviewed by Hermes Agent

[kyssta-exe]

Duplicate of #43836 — same Chinese reasoning tag additions for #43827. Closing as superseded.