branding: SimurgArray brand kit (mark, wordmark, lockups, icons, templates, guide)

Frontal dotted simurg on a bead grid: gold body and wings, three-dot crown,
red / gold / green channel plumes with peacock eyes. Detailed (31x27), simple
(11x10) and micro (7x7) drawings; dark, light, gold, black, white versions;
outlined Noto Sans wordmark; favicon and app icons; README banner, social
preview, avatar, featured-image template, report corner mark, CLI banner.
Checks: WCAG contrast table, protan/deutan simulation, icon sizes, family
sheet. Blog featured images regenerated with the new mark for consistency.
Geometry shared in scripts/brand/simurg_mark.py.

branding/templates/cli_banner.txt

@@ -0,0 +1,6 @@
+ o         o    SimurgArray {version}
+  oo  o  oo     Thirty birds, one picture.
+   ooooooo
+     ooo        IDAT to genotypes, QC, CN, PGx
+   /  |  \      research use only
+  *   o   *