Add Flask web UI, Docker Compose, core engine + tests

- physcom core: CLI, 5-pass pipeline, SQLite repo, 37 tests
- physcom_web: Flask app with HTMX for entity/domain/pipeline/results CRUD
- Docker Compose: web + cli services sharing a named volume for the DB
- Clean up local settings to use wildcard permissions

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/physcom_web/routes/domains.py

@@ -0,0 +1,16 @@
+"""Domain listing routes."""
+
+from __future__ import annotations
+
+from flask import Blueprint, render_template
+
+from physcom_web.app import get_repo
+
+bp = Blueprint("domains", __name__, url_prefix="/domains")
+
+
+@bp.route("/")
+def domain_list():
+    repo = get_repo()
+    domains = repo.list_domains()
+    return render_template("domains/list.html", domains=domains)