Module scenarios 

Grouped, category-based internet usage scenario display.

Replaces the flat usage checklist with a visually grouped TUI showing 14 modern internet scenarios across 5 categories, with capacity bars, simultaneous stream counts, and personalized recommendations.

Layout

┌──────────────────── USAGE CAPABILITY ────────────────────┐
│  ┌─ COMMUNICATION ─────────────────────────────────┐   │
│  │ 📹 HD Video Calls         8 Mbps  [████████░░] 62× ✅ │
│  └──────────────────────────────────────────────────┘   │
│  ... (4 more categories)                                │
│  ──── SUMMARY ─────────────────────────────────────     │
│  Your 500 Mbps connection supports: ...                 │
│  ⚠️  Recommendation: ...                                │
└──────────────────────────────────────────────────────────┘

Structs

ScenarioCategory

A category grouping scenarios.

ScenarioStatus

Computed status for a single scenario.

UsageScenario

A single usage scenario with bandwidth requirements.

Enums

HeadroomLevel

Overall headroom level for exit code determination.

Functions

all_categories

Get all scenario categories.

compute_all_statuses

Compute status for all scenarios given download speed in Mbps.

format_scenario_grid

Format the full scenario grid output.

print_scenario_grid

Format the scenario output, printing to stderr.

worst_headroom_level

Determine the worst headroom level across all statuses.