feat(collectors) basic implementation of boring collectors; sender via http(s) to hard coded api route

internal/collectors/collector.go

@@ -0,0 +1,9 @@
+package collectors
+
+import "bugs.watch/agent/internal/aggregate"
+
+// Collector collects one kind of system signal.
+type Collector interface {
+	Collect(window *aggregate.Window)
+	Name() string
+}