feat: indie status page MVP -- FastAPI + SQLite

- 8 DB models (services, incidents, monitors, subscribers, etc.)
- Full CRUD API for services, incidents, monitors
- Public status page with live data
- Incident detail page with timeline
- API key authentication
- Uptime monitoring scheduler
- 13 tests passing
- TECHNICAL_DESIGN.md with full spec

venv/lib/python3.11/site-packages/mypyc/lib-rt/set_ops.c

@@ -0,0 +1,17 @@
+// Set primitive operations
+//
+// These are registered in mypyc.primitives.set_ops.
+
+#include <Python.h>
+#include "CPy.h"
+
+bool CPySet_Remove(PyObject *set, PyObject *key) {
+    int success = PySet_Discard(set, key);
+    if (success == 1) {
+        return true;
+    }
+    if (success == 0) {
+        _PyErr_SetKeyError(key);
+    }
+    return false;
+}