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.

tests/unit/test_infra/test_ome/test_events.py

@@ -0,0 +1,49 @@
+from __future__ import annotations
+
+from datetime import datetime
+
+from everos.infra.ome.events import BaseEvent, CronTick, IdleTick, ManualTick
+
+
+class _DemoEvent(BaseEvent):
+    payload: str
+
+
+def test_base_event_auto_generates_id_and_ts() -> None:
+    e = _DemoEvent(payload="x")
+    assert isinstance(e.event_id, str)
+    assert len(e.event_id) >= 32
+    assert isinstance(e.ts, datetime)
+    assert e.ts.tzinfo is not None
+
+
+def test_base_event_is_frozen() -> None:
+    e = _DemoEvent(payload="x")
+    try:
+        e.payload = "y"  # type: ignore[misc]
+    except Exception:
+        return
+    raise AssertionError("BaseEvent should be frozen")
+
+
+def test_base_event_round_trips_json() -> None:
+    e = _DemoEvent(payload="hello")
+    blob = e.model_dump_json()
+    restored = _DemoEvent.model_validate_json(blob)
+    assert restored == e
+
+
+def test_cron_tick_carries_strategy_name() -> None:
+    e = CronTick(strategy_name="profile_extraction")
+    assert e.strategy_name == "profile_extraction"
+
+
+def test_idle_tick_carries_bucket_and_seconds() -> None:
+    e = IdleTick(strategy_name="agent_skill", bucket_key="user_42", idle_seconds=900)
+    assert e.bucket_key == "user_42"
+    assert e.idle_seconds == 900
+
+
+def test_manual_tick_carries_strategy_name() -> None:
+    e = ManualTick(strategy_name="cluster_memcells")
+    assert e.strategy_name == "cluster_memcells"