Feature: Analysis Cache
  As the system
  I want to cache analysis results
  So repeated analysis of identical files is instant

  Scenario: Cache hit
    Given a file has been analyzed previously
    When the analyze endpoint receives the same file bytes
    Then it returns the cached result immediately
    And the response includes _cached: true

  Scenario: Bulk cache lookup
    Given multiple files with known hashes
    When the /api/lookup endpoint receives their SHA256 hashes
    Then it returns a map of hash to analysis result for cached entries

  Scenario: Cache miss
    Given a file has not been analyzed
    When the analyze endpoint receives new file bytes
    Then it performs full analysis
    And caches the result by SHA256