Initial commit: CMM Report Analyzer

FastAPI app that parses CMM inspection reports (PDF/Excel/CSV),
computes SPC metrics (Cp/Cpk/Pp/Ppk, control limits, Shapiro-Wilk),
generates interactive Plotly charts, and provides AI-powered quality
summaries via Azure OpenAI with graceful fallback.

Includes 21 passing tests covering parsers, SPC calculations, and
API endpoints.

app/config.py

@@ -0,0 +1,14 @@
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    azure_openai_endpoint: str = ""
+    azure_openai_api_key: str = ""
+    azure_openai_deployment: str = "gpt-4o"
+    azure_openai_api_version: str = "2024-10-21"
+    max_upload_mb: int = 50
+
+    model_config = {"env_file": ".env", "env_file_encoding": "utf-8"}
+
+
+settings = Settings()