v6.1.0

sola-raylib 6.1.0 is a smaller release that's mostly centered around cleaning things up
following the 6.0.0 release. It fixes the noscreenshot feature, improves the docs, and
tries to make it easier to develop for WASM.

Get the latest version at https://crates.io/crates/sola-raylib

Removed

• nogif Cargo feature. raylib 6.0 dropped its built-in GIF recorder
  upstream (the rcore module no longer references SUPPORT_GIF_RECORDING), so
  the feature had no functional effect since the 6.0 bump. Drop the feature from
  your Cargo.toml; nothing replaces it.
  Raylib C example for recording.

Fixed

• noscreenshot feature now actually works on Linux (#40). The 6.0 build
  routed it through raylib's CUSTOMIZE_BUILD=ON CMake switch, which also
  defines EXTERNAL_CONFIG_FLAGS and makes raylib's config.h skip its entire
  defaults block. Every SUPPORT_* macro then went undefined (rtextures,
  partialbusy wait, gestures, etc.), so the window mapped but never rendered on
  X11/XWayland and failed to appear at all on native Wayland. The fix
  pre-defines SUPPORT_SCREEN_CAPTURE=0 directly on the C compile line via
  cflag, so config.h's #ifndef guard short-circuits while every other
  default flows through normally. The F12 keybind is gone from the compiled
  libraylib.a, rendering and Wayland init are unaffected.
• custom_frame_control feature was a no-op since the 6.0 bump. The build
  used builder.define("SUPPORT_CUSTOM_FRAME_CONTROL", "ON"), which sets a
  CMake variable that only reaches the C compiler when CUSTOMIZE_BUILD=ON is
  also set (and that path is the same one that broke noscreenshot). Switched
  to the same cflag("-DSUPPORT_CUSTOM_FRAME_CONTROL=1") approach so the
  feature actually flips the #if SUPPORT_CUSTOM_FRAME_CONTROL guards in
  rcore.c (SwapScreenBuffer, PollInputEvents, frame-time wait become
  user-driven, as documented).

Documentation

• New canonical "Cargo features" section in the top-level README listing every
  feature, its default state, and platform notes. The sola-raylib-sys README's
  table now points here.
• New mdBook under book/ for long-form
  recipes. First chapter book/src/web.md walks through wasm
  builds end to end: toolchain, the canonical .cargo/config.toml, the
  game_loop::run vs Asyncify tradeoff, asset bundling, save data, audio,
  deploy, pitfalls. Top-level README and the lib.rs crate docs link to it.
  Closes #34.

Added

• Cross-platform game-loop helper sola_raylib::core::game_loop::run.
  Native: drives the standard while !rl.window_should_close() loop. On
  wasm32-unknown-emscripten: registers the per-frame closure with
  emscripten_set_main_loop_arg so you don't need -sASYNCIFY=1 just for the
  loop. Same source for both. examples/hello_raylib.rs demonstrates it.
• Wasm build recipe is now in-tree. Cargo silently drops
  cargo:rustc-link-arg from rlib build scripts, so raylib-sys cannot inject
  linker flags into a downstream binary's link step. The flags raylib needs
  (-sUSE_GLFW=3, -sASYNCIFY=1, -sFORCE_FILESYSTEM=1,
  -sSUPPORT_LONGJMP=wasm, -sEXPORTED_RUNTIME_METHODS=...,
  -sALLOW_MEMORY_GROWTH=1) live in the consumer's .cargo/config.toml. See
  book/src/web.md and the copyable
  examples/.cargo/config.toml. raylib's own C
  compiles cleanly under rustc 1.93+'s default link ABI; if you have your own
  C/C++ deps via cc-rs, add
  CFLAGS_wasm32_unknown_emscripten = "-fwasm-exceptions -sSUPPORT_LONGJMP=wasm"
  to your [env] block.
• RaylibBuilder now exposes every raylib 6.0 ConfigFlags value as a
  dedicated builder method, so callers don't need to drop to SetConfigFlags
  for options the builder didn't cover. New methods:
  • borderless_windowed() (FLAG_BORDERLESS_WINDOWED_MODE) for a
    fullscreen-sized chromeless window. Friendlier than exclusive fullscreen()
    on modern desktops (no mode switch, fast Alt+Tab, plays well with
    multi-monitor and notifications).
  • hidden(), minimized(), maximized(), unfocused(), topmost(),
    always_run(), mouse_passthrough() covering the rest of the
    FLAG_WINDOW_* family.
  • interlaced() (FLAG_INTERLACED_HINT) for 3D TV setups.
• Improve Emscripten support for building for WASM from Windows.
• Doc note on fullscreen() recommending borderless_windowed() on modern
  platforms.