chore: Remove pricing page and nav links temporarily

test: Add smoke test for skill refinement with real Maryville PDFs (#91)

feat: Add pre-signed URL upload path in frontend for files over 8 MB (#92)

feat: Add pre-signed S3 upload Lambda and s3_key processing path (#92)

fix: Use "anon" instead of empty string for DynamoDB GSI user_id key (#90)

chore: Add DynamoDB read scripts and smoke test for table verification (#85, #87, #80)

feat: Extract ip_address from API Gateway requestContext (#90)

docs: Add download, clap, and event Lambda endpoints to CLAUDE.md (#85, #87, #80)

feat: Add event logging Lambdas and activity tracker (#80)

feat: Add clap DynamoDB Lambdas and frontend integration (#85, #88)

feat: Add download count DynamoDB Lambdas and frontend integration (#87)

test: Enhance smoke test runner and add contact form persist test (#70, #78)

feat: Enhance contact form with inquiry type dropdown and session auto-fill (#78, #79)

test: Add security header and profile smoke tests (#70, #72, #73, #75, #76)

feat: Add HSTS preload, X-Frame-Options, and X-Content-Type-Options headers (#72, #73, #75)