Include external libraries

Add external math and JSON libraries to our graphics module. In the file Renderer.cpp use the math API from glm and our JSON wrapper to load shader settings from shaders.json. Add the necessary include directives at the top of Renderer.cpp and the corresponding forward declarations in Renderer.h if needed. Make sure to include the correct header paths we use: deps/glm/glm.hpp and libs/json/json.hpp. Ladder":"L1"

Before I push the Renderer change, make it straightforward for a reviewer to verify dependencies are correct. Surface the library versions used and why we include glm in the cpp instead of the header, list the symbols we consume from the json wrapper, and flag any potential ABI or header-only issues that would make a CI build fail. Ladder":"L2"

They moved libs/json/json.hpp into Renderer.h to satisfy a compile error. Now unrelated projects fail due to macro collisions and increased compile time. I don’t want to force-json on every consumer of Renderer. What likely happened and what is the minimal change to stop the breakage while still letting Renderer.cpp use the JSON API? Ladder":"L5"

Every few sprints someone copies a third-party include into a header to make a quick compile fix; CI times and merge conflicts are rising. What practical team habits, code-review checks, and small build-system changes will prevent leaking third-party headers into public headers while keeping developer turnaround time acceptable? Give a short rollout plan. Ladder":"L6"