WIP: Save agent roles integration work before CHORUS rebrand

- Agent roles and coordination features
- Chat API integration testing
- New configuration and workspace management

🤖 Generated with [Claude Code](https://claude.ai/code)

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

vendor/github.com/pbnjay/memory/memory_linux.go

@@ -0,0 +1,29 @@
+// +build linux
+
+package memory
+
+import "syscall"
+
+func sysTotalMemory() uint64 {
+	in := &syscall.Sysinfo_t{}
+	err := syscall.Sysinfo(in)
+	if err != nil {
+		return 0
+	}
+	// If this is a 32-bit system, then these fields are
+	// uint32 instead of uint64.
+	// So we always convert to uint64 to match signature.
+	return uint64(in.Totalram) * uint64(in.Unit)
+}
+
+func sysFreeMemory() uint64 {
+	in := &syscall.Sysinfo_t{}
+	err := syscall.Sysinfo(in)
+	if err != nil {
+		return 0
+	}
+	// If this is a 32-bit system, then these fields are
+	// uint32 instead of uint64.
+	// So we always convert to uint64 to match signature.
+	return uint64(in.Freeram) * uint64(in.Unit)
+}