Trim some questionable stuff from style guide

style.md

@@ -56,10 +56,9 @@ signal(SIGTERM, handler);
 ```
 
 ### Data Types
-- **Almost always signed** - prefer `int`, `int64_t`, `size_t` over unsigned types except for:
+- **Almost always signed** - prefer `int`, `int64_t`, `ssize_t` over unsigned types except for:
   - Bit manipulation operations
   - Interfacing with APIs that require unsigned types
-  - Memory sizes where overflow is impossible (`size_t`, `uint32_t` for arena block sizes)
   - Where defined unsigned overflow behavior (wraparound) is intentional and desired
 - **Almost always auto** - let the compiler deduce types except when:
   - The type is not obvious from context (prefer explicit for clarity)
@@ -480,9 +479,7 @@ TEST_CASE("ArenaAllocator basic allocation") {
 ```
 
 ### Test Design Principles
-- **Prefer testing through public interfaces** - focus on observable behavior rather than implementation details
-- **Test the contract, not the implementation** - validate what the API promises to deliver
-- **Avoid testing private methods directly** - if private functionality needs testing, consider if it should be public or extracted
+- **Test the contract, not the implementation** - validate what the API promises to deliver, not implementation details
 - **Both integration and unit tests** - test components in isolation and working together
 - **Prefer fakes to mocks** - use real implementations for internal components, fake external dependencies
 - **Always enable assertions in tests** - use `-UNDEBUG` pattern to ensure assertions are checked (see Build Integration section)
@@ -509,7 +506,6 @@ TEST_CASE("Server accepts connections") {
   - `condition_variable.wait()` without timeout
   - `std::latch`, `std::barrier`, futures/promises
 - **Force concurrent execution** using `std::latch` to synchronize thread startup
-- **Tests should pass or hang** - no flaky timeout behavior
 
 ```cpp
 // BAD: Race likely over before threads start
@@ -559,22 +555,4 @@ add_executable(example src/example.cpp src/main.cpp)
 ```
 
 ### Code Generation
-- **gperf** for perfect hash table generation
-- **Build-time generation** of token lookup tables
-- **Include generated headers** from build directory
-
----
-
-## Style Enforcement
-
-### Consistency
-- Follow existing patterns in the codebase
-- Use the same style for similar constructs
-- Maintain consistency within each translation unit
-
-### Tools
-- **clang-format** configuration (when available)
-- **Static analysis** tools for code quality
-- **Address sanitizer** for memory safety testing
-
-This style guide reflects the existing codebase patterns and should be followed for all new code contributions to maintain consistency and readability.
+- Generated files go in build directory, not source