Use global conductor instance

The switch from crawler-local conductors to a single pferd-global conductor was
made to prepare for auth section credential providers.

PFERD/crawlers/__init__.py

@@ -1,10 +1,19 @@
 from configparser import SectionProxy
 from typing import Callable, Dict
 
+from ..conductor import TerminalConductor
 from ..config import Config
-from ..crawler import Crawler, CrawlerSection
+from ..crawler import Crawler
 from .local import LocalCrawler, LocalCrawlerSection
 
-CRAWLERS: Dict[str, Callable[[str, Config, SectionProxy], Crawler]] = {
-    "local": lambda n, c, s: LocalCrawler(n, c, LocalCrawlerSection(s)),
+CrawlerConstructor = Callable[[
+    str,                # Name (without the "crawl:" prefix)
+    SectionProxy,       # Crawler's section of global config
+    Config,             # Global config
+    TerminalConductor,  # Global conductor instance
+], Crawler]
+
+CRAWLERS: Dict[str, CrawlerConstructor] = {
+    "local": lambda n, s, c, t:
+        LocalCrawler(n, LocalCrawlerSection(s), c, t),
 }

PFERD/crawlers/local.py

@@ -1,6 +1,7 @@
 import asyncio
 from pathlib import Path, PurePath
 
+from ..conductor import TerminalConductor
 from ..config import Config
 from ..crawler import Crawler, CrawlerSection, anoncritical
 
@@ -17,10 +18,11 @@ class LocalCrawler(Crawler):
     def __init__(
             self,
             name: str,
-            config: Config,
             section: LocalCrawlerSection,
+            config: Config,
+            conductor: TerminalConductor,
     ):
-        super().__init__(name, config, section)
+        super().__init__(name, section, config, conductor)
 
         self._path = config.working_dir / section.path()