intake: research prompt — checkerboard PSF-mismatch residual diagnostic

Filed via /intake (hand-corrected work-type bug->research, re-homed to
research/pyautomemory/). Research + document the central checkerboard/aliasing
residual that indicates a mismatched PSF model; find 2-4 papers, ingest into
PyAutoMemory + autolens_assistant literature wiki, add a wiki concept ref.
Motivated by PJ011646 stdpsf_baseline (library STDPSF) showing it, STARRED not.

Author: Jammy2211

research/pyautomemory/checkerboard_psf_mismatch_residual_diagnostic.md

@@ -1,6 +1,6 @@
-# Checkerboard PSF-mismatch residual diagnostic: research and document the central checkerboard/aliasing
+# Checkerboard PSF-mismatch residual diagnostic — research + document + ingest papers
 
-Type: bug
+Type: research
 Target: PyAutoMemory
 Repos:
 - autolens_assistant