docs(agent): clarify ContextOverflowStrategy (context condensation, not history replacement)

[nurhamdan1987]

The ContextOverflowStrategy docstring (source of the generated API reference) inaccurately said SUMMARIZE "replaces the full chat history". Rewritten to be accurate and practical; the generated agent.md block is updated to match.

What it now says

• Context condensation manages the working context sent to the model on a run — not Shared Memory or the stored session history, which is always retained.
• TRUNCATE — default; removes the oldest unprotected turns until the context fits.
• SUMMARIZE — summarizes older context into a shorter form; retains more meaning than truncation but adds latency and model cost.
• Available in SDK 0.2.46+ (use the current 0.2.47).
• Precedence, highest first: per-run override (execution_params) → saved agent setting (agent.context_overflow_strategy) → Agent Engine default (truncate).

Verified against 0.2.47: enum values truncate/summarize, field default None, and execution_params maps context_overflow_strategy → contextOverflowStrategy (per-run override).

Companion narrative guide + examples: aixplain/sdk-documentation#264.

Note: docs/api-reference/python/aixplain/v2/agent.md is generated by pydoc-markdown. I hand-updated the affected block to match the docstring since the generator isn't run in this environment; a full regen will reproduce equivalent output.

🤖 Generated with Claude Code