Initial OFAC Civil Penalties scraper

Scrapes https://ofac.treasury.gov/civil-penalties-and-enforcement-information
for all years 2003-present. Downloads PDF documents and exports metadata.json
per CGSH Publication spec (v3) to S3 experimental bucket under ofac/ prefix.

Commands: ofac-full (all years), ofac-daily (current year incremental).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/OFACScraper/appsettings.json

@@ -0,0 +1,27 @@
+{
+  "OFAC": {
+    "BaseUrl": "https://ofac.treasury.gov",
+    "YearUrlTemplate": "/civil-penalties-and-enforcement-information/{0}-enforcement-information",
+    "StartYear": 2003,
+    "UserAgent": "Mozilla/5.0 (compatible; OFACBot/1.0; +https://ukdataservices.co.uk)",
+    "RequestDelayMs": 1000
+  },
+  "Storage": {
+    "DatabasePath": "/git/cgsh-ofac/data/ofac.db",
+    "ExportDirectory": "/git/cgsh-ofac/data/exports",
+    "DownloadDirectory": "/git/cgsh-ofac/data/downloads"
+  },
+  "S3": {
+    "BucketName": "uk-data-services-experimental-927681712454-eu-west-3-an",
+    "AccessKeyId": "AKIA5P7RDSFDK5MSRN6P",
+    "SecretAccessKey": "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",
+    "Region": "eu-west-3",
+    "Prefix": "ofac"
+  },
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.Extensions.Http": "Warning"
+    }
+  }
+}