chore: initialize EverOS 1.0.0

md-first memory extraction framework for AI agents.

Markdown is the single source of truth; SQLite holds state and LanceDB
provides the rebuildable vector + BM25 + scalar index. The codebase follows
a single-direction DDD layering (entrypoints -> service -> memory -> infra,
with component / core / config cross-cutting) enforced by import-linter.

Engineering surface:
- Coding conventions in .claude/rules/ (path-scoped) and workflows in
  .claude/skills/ (/commit, /new-branch, /pr).
- GitHub Actions CI runs make lint + test + integration; pre-commit mirrors
  the gates locally (ruff, hygiene hooks, gitlint commit-msg).
- Commit messages follow Conventional Commits, enforced by gitlint.
- make lint also enforces datetime two-zone discipline and OpenAPI drift.

use-cases/game-of-throne-demo/backend/.env.example

@@ -0,0 +1,12 @@
+# OpenAI / OpenRouter Configuration
+OPENAI_API_KEY=your-openrouter-api-key-here
+OPENAI_MODEL=anthropic/claude-3-haiku
+
+# Server Configuration
+PORT=3001
+FRONTEND_URL=http://localhost:3000
+
+# EverMind Cloud Configuration
+USE_EVERMEMOS=true
+EVERMEMOS_URL=https://api.evermind.ai
+EVERMEMOS_API_KEY=your-evermind-api-key-here