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/claude-code-plugin/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "evermem-claude-code",
+  "version": "0.1.0",
+  "type": "module",
+  "description": "EverMem Plugin for Claude Code - automatic memory recall from past sessions",
+  "scripts": {
+    "test:save": "node scripts/test-save-memories.js",
+    "test:retrieve": "node scripts/test-retrieve-memories.js",
+    "test": "npm run test:save && npm run test:retrieve"
+  },
+  "dependencies": {
+    "@anthropic-ai/claude-agent-sdk": "^0.1.76",
+    "@anthropic-ai/sdk": "^0.39.0"
+  },
+  "engines": {
+    "node": ">=18.0.0"
+  }
+}