Define recovered thought experiments

[BrickerP]

Summary

• define Get-Date-Love and quant-trading as unnumbered found experiments from before issue 001
• keep the Profile root sparse and route its memory portal to the Thought Experiments archive
• freeze the seven-file implementation boundary, privacy limits, pure-SVG rules, and verifier semantics

Why

This records the approved archive direction without treating recovered private work as new numbered issues or publicly verified provenance.

Validation

• cached file scope and stat reviewed
• git diff --cached --check passed
• no local test or build run, per repository instructions

Scope

Documentation only. This PR does not implement or deploy the Profile changes.