docs/data_flow.md

# Data Flow

## Pipeline

Resume + Company List
        ↓
Text Extraction
        ↓
AI Resume Parsing
        ↓
Profile Cleanup
        ↓
Company Loader
        ↓
Fetch Careers Pages
        ↓
ATS Detection
        ↓
Job Extraction
        ↓
Matching Engine
        ↓
Company Ranking
        ↓
Results Display

## Key Steps

### Resume → Profile
Extract:
- skills
- tools
- roles

### Jobs → Structured Data
Extract:
- title
- location
- url

### Matching
Score:
- title match
- skill overlap
- entry-level signals

### Output
- ranked companies
- job matches
- explanations