Add DEMO.md with annotated screenshot gallery of all nine schematic domain views

[Dessiidoo]

Summary

The most visually compelling part of this project — the nine schematic dashboard views spanning tactical helmets, combat mechs, fighter jets, submarines, deep-sea divers, astronaut EVA suits, firefighter gear, police riot gear, and armored tanks — is completely undocumented. Prospective buyers and evaluators will not understand the scope of the project without seeing these views.

Requested Enhancement

Create a DEMO.md file in the repository root that:

1. Embeds or links each of the nine schematic PNG assets from attached_assets/generated_images/ with a caption identifying the domain and system type
2. Briefly describes (1-2 sentences per view) what operational data or telemetry each domain view is intended to display
3. Includes a GIF or screen-recording walkthrough of navigating between all nine views in the running application — this can be captured with any screen recording tool and uploaded directly to GitHub as a release asset or embedded via a CDN link
4. Describes the visual design language of the TacticalFrame component as it appears in each domain context

Why This Matters

For defense contractors, simulation vendors, or investors evaluating this as a licensable asset, a visual demo is more persuasive than any written description. The current absence of any screenshot or demo is the single largest barrier to communicating the project's value at a glance.

Acceptance Criteria

• DEMO.md exists in repository root
• All nine domain schematics are visible without cloning the repo
• At least one animated GIF or video walkthrough is included
• Each view is labeled with its operational domain and system type