[todie]

• Add shields.io license badge (Apache-2.0 OR MIT) to the README header, linking to LICENSE-APACHE.
• Add the unsigned constitution block (Privacy, Freedom, Dignity / Guiding Principles / Community Standards / Brand Voice) after the License section.
• Verify the License section already links LICENSE-APACHE and LICENSE-MIT; no normalization needed.
• Prose is already short-sentence and active; no style changes.

Part of the unsigned-gg conformity directive (2026-10-11).

[todie]

Closing: duplicate of the badging PR already merged to main. Badging work is complete.