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.

src/everos/component/utils/__init__.py

@@ -0,0 +1,22 @@
+"""Common utilities (datetime, tokenization, etc.).
+
+Public API:
+    from everos.component.utils.datetime import (
+        UtcDatetime,
+        ensure_utc,
+        from_iso_format,
+        from_timestamp,
+        get_now_with_timezone,
+        get_utc_now,
+        to_date_str,
+        to_display_tz,
+        to_iso_format,
+        to_timestamp_ms,
+        today_with_timezone,
+    )
+    from everos.component.utils.tokenize import (
+        tokens_for_index,
+        tokens_for_query,
+        join_tokens,
+    )
+"""