feat(style): Add anti-OOP conventions and OOP refactoring tracker

- Add section 10 (Anti-OOP Conventions) to python.md with hard rules,
  class justification requirements, and Strangler Fig refactoring pattern
- Create conductor/refactor_oop.md tracker with 4 phases for class elimination
- Add ruff PLR rules (PLR0912, PLR6301, PLR0206) to pyproject.toml for
  OOP anti-patterns

Addresses AI agent scope misinterpretation issues by enforcing flat
function-call graphs over deep class hierarchies.

pyproject.toml

@@ -53,7 +53,8 @@ exclude = [
 
 [tool.ruff.lint]
 # Enable McCabe complexity check for nesting depth enforcement
-select = ["E", "F", "W", "C90", "C4"]
+# PLR = complexity rules for methods/functions
+select = ["E", "F", "W", "C90", "C4", "PLR0912", "PLR6301", "PLR0206"]
 
 # Ignore style choices that conflict with project's compact style
 ignore = [
@@ -65,6 +66,9 @@ ignore = [
     "W293", # Blank line contains whitespace
 ]
 
+[tool.ruff.lint.per-file-ignores]
+"__init__.py" = ["PLR"]  # Allow init to export classes
+
 [tool.ruff.lint.mccabe]
 max-complexity = 5