feat(soul): escalate repeated-tool-call reminders and force-stop on dead-end streak

[jackfish212]

Related Issue

N/A

Description

Port kimi-code's repeated-tool-call handling into kimi-cli. Once a call is
repeated 3+ times consecutively, a reminder is now injected on every repeat
with escalating tiers (r1/r2/r3), and the turn is force-stopped when the
streak hits 12 so the loop cannot spin on the same call indefinitely. Repeat
telemetry is aligned with kimi-code.

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1. Escalating repeat reminders

Problem: The previous dedup only injected a reminder at exactly streak
3/5/8, leaving streaks 4/6/7/9/10/11 with no guidance to the model.

What was done:

• Added the r3 (dead-end) reminder text.
• Inject on every repeat from streak 3: r1 (3-4), r2 (5-7), r3 (8+).

2. Force-stop on dead-end streak

Problem: A stuck model could loop on the same tool call until
max_steps_per_turn was hit.

What was done:

• KimiToolset exposes force_stop_turn, set when the streak reaches 12.
• _step stops the turn with stop_reason="tool_call_repeat" after the
  dead-end reminder is grown into context.

3. Telemetry alignment with kimi-code

Problem: Repeat telemetry diverged from kimi-code.

What was done:

• Emit tool_call_repeat{tool_name, repeat_count, action} for every
  consecutive repeat (streak >= 2), with action in none/r1/r2/r3/stop.
• Drop the same-step dedup telemetry event (kimi-code emits none) and remove
  the now-dead step_no/turn_id state from the dedup path.

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Checklist

• I have read the CONTRIBUTING document.
• I have linked the related issue, if any.
• I have added tests that prove my fix is effective or that my feature works.
• I have run make gen-changelog to update the changelog.
• I have run make gen-docs to update the user documentation.

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.