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>

.claude/settings.local.json

@@ -1,7 +1,12 @@
 {
   "permissions": {
     "allow": [
-      "Bash(git -C \"/c/Users/simonan/OneDrive - Ecolab/Documents/Github/physicalCombinatorics\" log --oneline --all)"
+      "Bash(git *)",
+      "Bash(pip install *)",
+      "Bash(python -m pytest *)",
+      "Bash(python -m physcom *)",
+      "Bash(python -m physcom_web *)",
+      "Bash(python -c *)"
     ]
   }
 }