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.

proxy_manager.py

@@ -1,14 +1,12 @@
 """Pry — Proxy Manager with affiliate-signup flow.
 Tries free proxies first (Tor, public rotating). When premium proxy is needed,
 prompts user to sign up via affiliate links. Pre-wired to 5+ providers."""
-from paths import PRY_DATA_DIR
 
 # SPDX-License-Identifier: MIT
 # Copyright (c) 2026 Rug Munch Media LLC
 #
 # Part of Pry — https://git.rugmunch.io/RugMunchMedia/pryscraper
 # Licensed under MIT. See LICENSE.
-
 import json
 import logging
 import os
@@ -18,6 +16,8 @@ from datetime import UTC, datetime
 from pathlib import Path
 from typing import Any
 
+from paths import PRY_DATA_DIR
+
 logger = logging.getLogger(__name__)
 
 try:
@@ -465,7 +465,6 @@ class ProxyManager:
             logger.debug("recent_clicks_failed", extra={"error": str(e)[:80]})
             return []
 
-
     # ── Proxy referral catalog (from proxy_referrals.py) ────────────────
     def get_proxy_referral(self, provider_tag: str) -> dict[str, Any]:
         """Get the curated referral info for a proxy provider.
@@ -487,9 +486,7 @@ class ProxyManager:
 
     def list_proxy_referrals(self) -> list[dict[str, Any]]:
         """List all proxy provider referrals (curated, marketing-friendly view)."""
-        return [
-            {"tag": tag, **info} for tag, info in _PROXY_REFERRALS.items()
-        ]
+        return [{"tag": tag, **info} for tag, info in _PROXY_REFERRALS.items()]
 
     def get_proxy_referral_summary(self) -> dict[str, Any]:
         """Return a per-tier summary of proxy referrals (count, providers, total commission ceiling)."""
@@ -504,7 +501,6 @@ class ProxyManager:
         }
 
 
-
 def _parse_ts(ts: str) -> float:
     """Parse an ISO timestamp to epoch seconds. Returns 0 on error."""
     if not ts: