chore(brand): bootstrap the CUBRID Lab brand system

[yeongseon]

Summary

Bootstrap the CUBRID Lab brand repository as the canonical source for geometric role symbols, language color tokens, repository mappings, generated assets, provenance, and usage guidance.

Closes #1

Included

• Driver connector as the first approved role symbol
• 24×24 numeric geometry source
• identical Driver geometry for Python / TypeScript / Go / Rust
• language-token colors separated from repository identity
• explicit mappings for current public CUBRID Lab repositories
• generated Driver SVGs for pycubrid, cubrid-client, cubrid-go, and cubrid-rs
• Korean guidance
• provenance and brand/legal-status documentation
• deterministic generator and stdlib-only tests
• pinned GitHub Actions validation

Intentionally not included

• no official CUBRID logo copy or modification
• no Pokémon or other third-party character/logo assets
• no invented ORM/MCP/Operator/Cookbook symbol
• no claim that trademark or non-infringement review is complete

Design rule

Shape = technical role. Color = implementation language.

Validation

CI runs:

python scripts/build.py
python -m unittest discover -s tests -v
git diff --exit-code -- src/driver.svg dist

Review status

A maintainer-side re-review found and fixed two bootstrap issues before merge:

• numeric geometry is now the single source of truth; generated SVGs can no longer drift independently
• code licensing and the still-pending visual-asset redistribution license are now explicitly separated

CI passes after these fixes. Independent post-implementation review is still required before merge. Legal/trademark clearance remains explicitly pending and is not represented by this PR.