chore(lint): auto-fix 253 of 283 ruff issues (F401, I001, E402, RUF100, UP037, SIM105)

Mass ruff auto-fix:
  - ruff check --fix: 109 issues fixed (F401 unused imports,
    I001 unsorted imports, UP037 quoted annotations, SIM105
    suppressible exception, RUF100 unused-noqa)
  - ruff check --fix --unsafe-fixes: 22 additional issues
  - ruff format: 70 files reformatted
  - Manual pass: fix 16 misplaced import httpx lines
  - Manual pass: fix remaining E402 (import-after-docstring)

Result: 283 errors -> 30 errors.

The remaining 30 are real issues that need manual review:
  5 F401 unused-import (likely auto-generated stubs)
  5 F821 undefined-name (real bugs in code that references
    redis/pydantic/LLMRegistry without imports)
  3 BLE001 (the compliance LLM fallback is intentional; the
    other two are real)
  3 RUF012 mutable-class-default
  3 SIM105, 3 SIM117, 2 E722, 2 E741
  1 B007, 1 B025, 1 E402, 1 RUF200 (pyproject.toml issue)

Tests: 436/437 pass (1 pre-existing SSE sandbox failure).
format check + import sort: now clean.
make ci: still gated on the 30 remaining real issues.
Follow-up: triage the 30 issues file-by-file.

ocr_extractor.py

@@ -1,4 +1,4 @@
-import httpx
+
 """Pry — Image OCR using Tesseract.
 Extract text from images on web pages. Uses pytesseract + Pillow."""
 
@@ -13,6 +13,8 @@ import logging
 import os
 from typing import Any, ClassVar
 
+import httpx
+
 logger = logging.getLogger(__name__)
 
 try:
@@ -28,8 +30,18 @@ class ImageOCR:
     """Extract text from images using Tesseract OCR."""
 
     SUPPORTED_LANGUAGES: ClassVar[list[str]] = [
-        "eng", "chi_sim", "chi_tra", "spa", "fra", "deu", "ita",
-        "por", "rus", "jpn", "kor", "ara",
+        "eng",
+        "chi_sim",
+        "chi_tra",
+        "spa",
+        "fra",
+        "deu",
+        "ita",
+        "por",
+        "rus",
+        "jpn",
+        "kor",
+        "ara",
     ]
 
     def __init__(self, language: str = "eng"):