Own gravity and ghost Feynman rules

Derived in code/p6q05/gravity.py from the XVI-P declared action: $S_{EH}=-(2/{\kappa }^2)\int L_{\Gamma \Gamma }$, the gauge fixing obtained by eliminating $b$ ($+D_{\mu }{D}^{\mu }$), $S_{gh}=\int i{\bar{c}}_{\mu }{D}^{\mu }[(\partial c+\partial c)+\kappa L_{c}h]$, $Ksh$ with $sh=\frac{1}{2}{L}_c(\eta +\kappa h)$, and $sc=\frac{\kappa }{2}c\cdot \partial c$, $s\varphi =\frac{\kappa }{2}c\cdot \partial \varphi$ (XVI-P P13 $s$-images). Checks: the EH quadratic form is gauge invariant. EH plus gauge fixing equals $k^2(I-\frac{1}{2}J)$ (XVI-P $K=-\square P$), so the graviton propagator is $i/k^2(I-\frac{1}{2}J)$ with $\mathrm{tr}\eta =4$ (Q4S). Validation against pinned XVI-P two-point poles, all structures including evanescent ones, constant ratio (own/XVI-P): D01 (V3$\times$V3) $=I$, D03 (ghost loop) $=I$, D06 ($\bar{c}c$) $=I$, D13 ($K^{\prime }\cdot c$) $=-I$. $I$ is the Q04 convention factor (D11). Disclosure: D13 has the opposite overall sign: the orientation of the $K^{\prime }\cdot c$ slot differs between the two codes. Own rows use own D13 consistently. The ghost equation holds at two points ($D06=-2D13[K\to T]$) and graph by graph at three points ($G04=-2G03[K\to T]$, $G09=-2G07[K\to T]$).