Mail access: IMAP + app password (IPv4 only), not Gmail API

internal/version/version.go

@@ -0,0 +1,16 @@
+// Package version holds build metadata for the Email Agent service.
+//
+// The values are overridden at build time via -ldflags, for example:
+//
+//	go build -ldflags "-X gitea.lab.audasmedia.com.au/sam/email_agent/internal/version.Version=1.2.3"
+package version
+
+// Version is the application version. It defaults to "dev" for local builds.
+var Version = "dev"
+
+// Commit is the git revision the binary was built from.
+var Commit = "unknown"
+
+// BuildTime is the RFC3339 timestamp of the build. It may be empty for
+// ad-hoc local builds.
+var BuildTime = ""