Initial upload: Add repohealth-cli project with CI/CD workflow

src/repohealth/models/author.py

@@ -0,0 +1,42 @@
+"""Author statistics data models."""
+
+from dataclasses import dataclass, field
+from typing import Optional
+from datetime import datetime
+
+
+@dataclass
+class AuthorStats:
+    """Statistics for a single author across the repository."""
+
+    name: str
+    email: str
+    total_commits: int = 0
+    files_touched: set[str] = field(default_factory=set)
+    first_commit: Optional[datetime] = None
+    last_commit: Optional[datetime] = None
+    modules_contributed: set[str] = field(default_factory=set)
+    unique_contributions: int = 0
+    total_contributions: int = 0
+
+    @property
+    def ownership_percentage(self) -> float:
+        """Get percentage of total repository contributions."""
+        return 0.0
+
+    def add_file(self, file_path: str, module: str) -> None:
+        """Record a contribution to a file."""
+        self.files_touched.add(file_path)
+        self.modules_contributed.add(module)
+        self.total_contributions += 1
+
+    def merge(self, other: "AuthorStats") -> None:
+        """Merge another AuthorStats into this one."""
+        self.total_commits += other.total_commits
+        self.files_touched.update(other.files_touched)
+        self.modules_contributed.update(other.modules_contributed)
+        self.unique_contributions = len(self.files_touched)
+        if other.first_commit and (not self.first_commit or other.first_commit < self.first_commit):
+            self.first_commit = other.first_commit
+        if other.last_commit and (not self.last_commit or other.last_commit > self.last_commit):
+            self.last_commit = other.last_commit