Build Capital Quest for CoCo 3 with maps and emulator tests

assets/CREDITS.md

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+# Map and font credits
+
+Map: **© Fla-shop.com**. Reference and license statement:
+<https://www.fla-shop.com/svg/usa/>
+
+Original SVG retrieved 2026-11-09:
+<https://www.fla-shop.com/svg/usa/usa-albers-2000-1200.svg>
+
+Licensed under **Creative Commons Attribution 4.0 International**:
+<https://creativecommons.org/licenses/by/4.0/>
+
+The original copyright/license comment is preserved in `usa-source.svg`.
+Adaptations: straight-path scan conversion, state-region identity assignment,
+resolution reduction, one-pixel boundary simplification, recoloring, run-length
+encoding, and Northeast/Hawaii detail crops. The national artwork already
+contains Alaska and Hawaii insets. Insets are not to a common scale. Islands
+smaller than a guest pixel may disappear. No endorsement is implied.
+`C` on the title screen opens the in-game credits, including these source and
+license URLs and the adaptation notice.
+
+Font: Pierre Sarrazin's **font5x8**, public domain, linked from VCC Plus's bundled
+HiresTxt library. Header identifies the author and public-domain dedication.
+
+Disk boot helper: Pierre Sarrazin, **autostart.c 0.1.2**, public domain; adapted
+from the installed Hello Disk template to load `CAPITAL.BIN`.
+
+CMOC and LWTOOLS are supplied by VCC Plus; the GIME helper is supplied by VCC
+Plus (its public header is marked GPL-3.0-or-later). This project is distributed
+under GPL-3.0-or-later to accommodate linked library code. See VCC Plus →
+Licenses & Notices for the bundled toolchain's notices and source information.
+The map remains CC BY 4.0 and the font/boot helper remain public domain.