* simurg/core/brand.py: single source of the mark geometry, colours, favicon
and the report header band (scripts/brand now load it from there).
* HTML reports (QC report, compare dashboard, methylation QC): offline SVG
favicon, indigo header band with the mark, version and a sha256 of the data
shown; Noto Sans font stack; methylation plots in Okabe-Ito colours.
* README banner, guide logo, brand/blog links; branding brief updated to the
final identity; Noto (OFL) and Okabe-Ito entries in THIRD_PARTY_NOTICES;
CHANGELOG (Unreleased).
Unit tests + P5 QC oracle: 285 passed; ruff and mypy clean.
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.
kemal