fix(domains): standardize all domain names to lowercase

Convert all capitalized domain names to lowercase to maintain consistency
across the repository, following the standards defined in DOMAINS.md.

Changes:
- Converted 69 files with uppercase domain names to lowercase
- Fixed domains including: Agriculture→agriculture, Artificial Intelligence→artificial intelligence,
  Banking→banking, Chemistry→chemistry, and many more
- All domain validation checks now pass

Resolves domain case inconsistencies identified by check_domains.py

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: 郑开元

firstdata/sources/academic/biology/alphafold-db.json

@@ -13,12 +13,12 @@
   "api_url": "https://alphafold.com/api-docs",
   "country": null,
   "domains": [
-    "Structural Biology",
-    "Proteomics",
-    "Drug Discovery",
-    "Molecular Biology",
-    "Biotechnology",
-    "Bioinformatics"
+    "structural biology",
+    "proteomics",
+    "drug discovery",
+    "molecular biology",
+    "biotechnology",
+    "bioinformatics"
   ],
   "geographic_scope": "global",
   "update_frequency": "irregular",
@@ -66,4 +66,4 @@
     ]
   },
   "authority_level": "international"
-}
+}

firstdata/sources/academic/biology/ena.json

@@ -13,15 +13,15 @@
   "api_url": "https://www.ebi.ac.uk/ena/browser/api/swagger-ui/index.html",
   "country": null,
   "domains": [
-    "Genomics",
-    "Transcriptomics",
-    "Metagenomics",
-    "Molecular Biology",
-    "Bioinformatics",
-    "Biodiversity",
-    "Environmental Sciences",
-    "Healthcare",
-    "Pathogen Surveillance"
+    "genomics",
+    "transcriptomics",
+    "metagenomics",
+    "molecular biology",
+    "bioinformatics",
+    "biodiversity",
+    "environmental sciences",
+    "healthcare",
+    "pathogen surveillance"
   ],
   "geographic_scope": "global",
   "update_frequency": "daily",
@@ -77,4 +77,4 @@
     ]
   },
   "authority_level": "international"
-}
+}

firstdata/sources/academic/biology/genbank.json

@@ -13,10 +13,10 @@
   "api_url": "https://www.ncbi.nlm.nih.gov/books/NBK25501/",
   "country": null,
   "domains": [
-    "Genomics",
-    "Molecular Biology",
-    "Genetics",
-    "Bioinformatics"
+    "genomics",
+    "molecular biology",
+    "genetics",
+    "bioinformatics"
   ],
   "geographic_scope": "global",
   "update_frequency": "daily",
@@ -60,4 +60,4 @@
     ]
   },
   "authority_level": "government"
-}
+}

firstdata/sources/academic/biology/pdb.json

@@ -13,13 +13,13 @@
   "api_url": "https://data.rcsb.org",
   "country": null,
   "domains": [
-    "Structural Biology",
-    "Biochemistry",
-    "Molecular Biology",
-    "Computational Biology",
-    "Drug Discovery",
-    "Biotechnology",
-    "Protein Science"
+    "structural biology",
+    "biochemistry",
+    "molecular biology",
+    "computational biology",
+    "drug discovery",
+    "biotechnology",
+    "protein science"
   ],
   "geographic_scope": "global",
   "update_frequency": "weekly",
@@ -67,4 +67,4 @@
     ]
   },
   "authority_level": "research"
-}
+}

firstdata/sources/academic/chemistry/chembl.json

@@ -13,17 +13,17 @@
   "api_url": "https://www.ebi.ac.uk/chembl/api/data/docs",
   "country": null,
   "domains": [
-    "Drug Discovery",
-    "Pharmaceutical Sciences",
-    "Medicinal Chemistry",
-    "Chemical Biology",
-    "Bioactivity",
-    "Pharmacology",
-    "Toxicology",
-    "ADMET",
-    "Agrochemical Research",
-    "Genomics",
-    "Proteomics"
+    "drug discovery",
+    "pharmaceutical sciences",
+    "medicinal chemistry",
+    "chemical biology",
+    "bioactivity",
+    "pharmacology",
+    "toxicology",
+    "admet",
+    "agrochemical research",
+    "genomics",
+    "proteomics"
   ],
   "geographic_scope": "global",
   "update_frequency": "quarterly",
@@ -84,4 +84,4 @@
     ]
   },
   "authority_level": "research"
-}
+}

firstdata/sources/academic/chemistry/chemspider.json

@@ -13,14 +13,14 @@
   "api_url": null,
   "country": null,
   "domains": [
-    "Chemistry",
-    "Chemical Structures",
-    "Molecular Properties",
-    "Pharmaceutical Sciences",
-    "Materials Science",
-    "Organic Chemistry",
-    "Inorganic Chemistry",
-    "Chemical Information"
+    "chemistry",
+    "chemical structures",
+    "molecular properties",
+    "pharmaceutical sciences",
+    "materials science",
+    "organic chemistry",
+    "inorganic chemistry",
+    "chemical information"
   ],
   "geographic_scope": "global",
   "update_frequency": "daily",
@@ -72,4 +72,4 @@
     ]
   },
   "authority_level": "international"
-}
+}

firstdata/sources/academic/chemistry/drugbank.json

@@ -13,16 +13,16 @@
   "api_url": "https://docs.drugbank.com",
   "country": null,
   "domains": [
-    "Pharmaceutical Sciences",
-    "Drug Discovery",
-    "Drug Development",
-    "Pharmacology",
-    "Medicinal Chemistry",
-    "Bioinformatics",
-    "Cheminformatics",
-    "Clinical Pharmacology",
-    "Drug Metabolism",
-    "Toxicology"
+    "pharmaceutical sciences",
+    "drug discovery",
+    "drug development",
+    "pharmacology",
+    "medicinal chemistry",
+    "bioinformatics",
+    "cheminformatics",
+    "clinical pharmacology",
+    "drug metabolism",
+    "toxicology"
   ],
   "geographic_scope": "global",
   "update_frequency": "irregular",
@@ -82,4 +82,4 @@
     ]
   },
   "authority_level": "research"
-}
+}

firstdata/sources/academic/chemistry/pubchem.json

@@ -13,12 +13,12 @@
   "api_url": "https://pubchem.ncbi.nlm.nih.gov/docs/programmatic-access",
   "country": null,
   "domains": [
-    "Chemistry",
-    "Biochemistry",
-    "Pharmacology",
-    "Toxicology",
-    "Biology",
-    "Medicine"
+    "chemistry",
+    "biochemistry",
+    "pharmacology",
+    "toxicology",
+    "biology",
+    "medicine"
   ],
   "geographic_scope": "global",
   "update_frequency": "daily",
@@ -73,4 +73,4 @@
     ]
   },
   "authority_level": "government"
-}
+}

firstdata/sources/academic/economics/bis-statistics.json

@@ -13,16 +13,16 @@
   "api_url": "https://stats.bis.org/api-doc/v2/",
   "country": null,
   "domains": [
-    "International Banking",
-    "Debt Securities",
-    "Credit Markets",
-    "Foreign Exchange",
-    "Derivatives",
-    "Property Prices",
-    "Consumer Prices",
-    "Global Liquidity",
-    "Payment Systems",
-    "Central Bank Statistics"
+    "international banking",
+    "debt securities",
+    "credit markets",
+    "foreign exchange",
+    "derivatives",
+    "property prices",
+    "consumer prices",
+    "global liquidity",
+    "payment systems",
+    "central bank statistics"
   ],
   "geographic_scope": "global",
   "update_frequency": "quarterly",
@@ -73,4 +73,4 @@
     ]
   },
   "authority_level": "government"
-}
+}

firstdata/sources/academic/economics/conference-board.json

@@ -13,12 +13,12 @@
   "api_url": null,
   "country": null,
   "domains": [
-    "Economics",
-    "Business Cycles",
-    "Consumer Confidence",
-    "Labor Markets",
-    "Employment",
-    "Economic Forecasting"
+    "economics",
+    "business cycles",
+    "consumer confidence",
+    "labor markets",
+    "employment",
+    "economic forecasting"
   ],
   "geographic_scope": "global",
   "update_frequency": "monthly",
@@ -54,4 +54,4 @@
     ]
   },
   "authority_level": "research"
-}
+}