[bug] quick-router: leading please on memory recall/forget falls through to the LLM

[kurosawareiji7007-hub]

Summary

memory_recall_query and memory_forget_query already strip a trailing please from the extracted query. A leading please was never stripped, so the start-anchored recall/forget prefixes miss equally natural polite forms and fall through to the LLM.

Repro (on main)

utterance	on main	expected
Please search memory for Jared	ABSTAIN	memory_recall{query: jared}
Please search memory for Jared please	ABSTAIN	memory_recall{query: jared}
Please forget my old locker combination	ABSTAIN	memory_forget{query: old locker combination}
Please forget the wifi password please	ABSTAIN	memory_forget{query: wifi password}

Search memory for Jared please / Forget my old locker combination please already route today.

Root cause

Both prefix loops are start-anchored. Leading please keeps the string from matching any prefix, even though trailing politeness is already cleaned from the query.

Proposed fix

Strip a leading please at the top of memory_recall_query and memory_forget_query, mirroring web_search (#932), news (#908), time (#906), and scene/routine (#894). Negatives stay off (please help me); bare-pronoun forget/recall abstains stay (please forget it, please search memory for it).

Acceptance

• Leading-please recall/forget forms route correctly
• Existing trailing-please query cleaning unchanged
• Focused regression coverage fails on main, passes with the fix
• No prompt growth; 4096 Jetson contract untouched

Labels / scope

Tool-dispatch correctness (deterministic quick-router).

[kurosawareiji7007-hub]

Working on this. Local fix + regression tests ready on fix/quick-router-memory-leading-please. Will open the PR after #932 / once under the 2-open-PR limit (#907 / #909).