feature: hud (#37)

* build: replace FetchContent with direct includes for glm

* build(deps): replace SOIL2 with stb for image and vorbis decoding

* build: replace FetchContent with direct includes for toml++

* refactor(texture): bump block texture size to 512 and disable items tab

* feat: add hotbar system with ItemStack and RowLayout

* fix(ui): restrict Ctrl key handling to typing mode

* feat(ui): add widget border support and highlight selected hotbar slot

* fix(ui): update borders on scale change and correct Image width

- Added update_border() calls in set_scale() for Button, ChatBox, Image, Label, and TextField.
- Fixed Image::width() to multiply by width instead of height.
- Added early return in Widget::update_border() if border is not supported.

* feat(ui): add border visual feedback on slider drag

* feat(ui): add ItemSlot widget and refactor hotbar to use it

* feat(world_scene): add inventory UI and pause type enum

* feat(ui): add item slot tooltip and make window size static

* fix(ui label): account for background offset in width/height

* refactor(ui): centralize item info label in inventory and add update

* feat(ui): add hotbar interaction in inventory UI

* fix(inventory-ui): correct row creation logic for first item

The loop starting at index 0 created a new row on the first iteration
(i % 10 == 0). Shift the loop to start at 1 and adjust modulus condition
to create rows correctly every 10 items.

* feat(block): add name_key for localized block names

Add `name_key` field to all block TOML definitions, enabling per-block localization. Update `BlockData` struct and `BlockManager` with `local_name()` method that returns a localized string via the translation system. Add corresponding entries to `en_US.json` and `zh_CN.json`. Modify inventory UI to use the localized name when displaying block info, and fix a bug where emptying a hotbar slot did not clear the item locally.

* fix(ui): change inventory item slot color from white to gray

* fix(ui): add missing include for std::array

include/glm/ext/scalar_common.inl

@@ -0,0 +1,170 @@
+namespace glm
+{
+	template<typename T>
+	GLM_FUNC_QUALIFIER T (min)(T a, T b, T c)
+	{
+		return (glm::min)((glm::min)(a, b), c);
+	}
+
+	template<typename T>
+	GLM_FUNC_QUALIFIER T (min)(T a, T b, T c, T d)
+	{
+		return (glm::min)((glm::min)(a, b), (glm::min)(c, d));
+	}
+
+	template<typename T>
+	GLM_FUNC_QUALIFIER T (max)(T a, T b, T c)
+	{
+		return (glm::max)((glm::max)(a, b), c);
+	}
+
+	template<typename T>
+	GLM_FUNC_QUALIFIER T (max)(T a, T b, T c, T d)
+	{
+		return (glm::max)((glm::max)(a, b), (glm::max)(c, d));
+	}
+
+#	if GLM_HAS_CXX11_STL
+		using std::fmin;
+#	else
+		template<typename T>
+		GLM_FUNC_QUALIFIER T fmin(T a, T b)
+		{
+			GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'fmin' only accept floating-point input");
+
+			if (isnan(a))
+				return b;
+			return min(a, b);
+		}
+#	endif
+
+	template<typename T>
+	GLM_FUNC_QUALIFIER T (fmin)(T a, T b, T c)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'fmin' only accept floating-point input");
+
+		if (isnan(a))
+			return (fmin)(b, c);
+		if (isnan(b))
+			return (fmin)(a, c);
+		if (isnan(c))
+			return min(a, b);
+		return (min)(a, b, c);
+	}
+
+	template<typename T>
+	GLM_FUNC_QUALIFIER T (fmin)(T a, T b, T c, T d)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'fmin' only accept floating-point input");
+
+		if (isnan(a))
+			return (fmin)(b, c, d);
+		if (isnan(b))
+			return (min)(a, (fmin)(c, d));
+		if (isnan(c))
+			return (fmin)(min(a, b), d);
+		if (isnan(d))
+			return (min)(a, b, c);
+		return (min)(a, b, c, d);
+	}
+
+
+#	if GLM_HAS_CXX11_STL
+		using std::fmax;
+#	else
+		template<typename T>
+		GLM_FUNC_QUALIFIER T (fmax)(T a, T b)
+		{
+			GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'fmax' only accept floating-point input");
+
+			if (isnan(a))
+				return b;
+			return (max)(a, b);
+		}
+#	endif
+
+	template<typename T>
+	GLM_FUNC_QUALIFIER T (fmax)(T a, T b, T c)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'fmax' only accept floating-point input");
+
+		if (isnan(a))
+			return (fmax)(b, c);
+		if (isnan(b))
+			return (fmax)(a, c);
+		if (isnan(c))
+			return (max)(a, b);
+		return (max)(a, b, c);
+	}
+
+	template<typename T>
+	GLM_FUNC_QUALIFIER T (fmax)(T a, T b, T c, T d)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'fmax' only accept floating-point input");
+
+		if (isnan(a))
+			return (fmax)(b, c, d);
+		if (isnan(b))
+			return (max)(a, (fmax)(c, d));
+		if (isnan(c))
+			return (fmax)((max)(a, b), d);
+		if (isnan(d))
+			return (max)(a, b, c);
+		return (max)(a, b, c, d);
+	}
+
+	// fclamp
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType fclamp(genType x, genType minVal, genType maxVal)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'fclamp' only accept floating-point or integer inputs");
+		return fmin((fmax)(x, minVal), maxVal);
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType clamp(genType const& Texcoord)
+	{
+		return glm::clamp(Texcoord, static_cast<genType>(0), static_cast<genType>(1));
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType repeat(genType const& Texcoord)
+	{
+		return glm::fract(Texcoord);
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType mirrorClamp(genType const& Texcoord)
+	{
+		return glm::fract(glm::abs(Texcoord));
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType mirrorRepeat(genType const& Texcoord)
+	{
+		genType const Abs = glm::abs(Texcoord);
+		genType const Clamp = glm::mod(glm::floor(Abs), static_cast<genType>(2));
+		genType const Floor = glm::floor(Abs);
+		genType const Rest = Abs - Floor;
+		genType const Mirror = Clamp + Rest;
+		return mix(Rest, static_cast<genType>(1) - Rest, Mirror >= static_cast<genType>(1));
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER int iround(genType const& x)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'iround' only accept floating-point inputs");
+		assert(static_cast<genType>(0.0) <= x);
+
+		return static_cast<int>(x + static_cast<genType>(0.5));
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER uint uround(genType const& x)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'uround' only accept floating-point inputs");
+		assert(static_cast<genType>(0.0) <= x);
+
+		return static_cast<uint>(x + static_cast<genType>(0.5));
+	}
+}//namespace glm