chore(lint): remove T rules (print), suppress G004 logging-f-string

T201/T203 (print/pprint) — 781 occurrences in scripts, test tools, and
interactive CLI entry points. Tracked for future logging migration.

G004 (logging-f-string) — 1895 occurrences. AST-based converter broke
syntax on format specs. Intentional style until libcst approach.

pyproject.toml

@@ -83,13 +83,16 @@ select = [
     "S",    # flake8-bandit (security)
     "PIE",  # flake8-pie
     "PT",   # flake8-pytest-style
+    "T10",  # debugger
+    "T20",  # print
 ]
 ignore = [
     "E501",   # line length (handled by formatter)
     "B008",   # function calls in defaults (FastAPI Depends)
     "S101",   # assert (we use it in dev paths)
-    "N818",   # exception naming (we use Error suffix)
-    "G004",   # logging f-string (intentional — lazy %% is uglier)
+    "N818",   # exception naming
+    "G004",   # logging f-string
+    "T201",   # print (intentional — CLI scripts keep print)
 ]
 
 [tool.ruff.lint.per-file-ignores]