Add machine archetypes and amount= expansion

Introduces archetype profiles (windows-workstation, linux-server,
domain-controller, printer, iot-device, etc.) so users get a realistic
service+distro combination without knowing which services to pick.

Adds amount= to INI config (and CLI --archetype) so a single section
can spawn N identical deckies without copy-paste. Per-service subsections
(e.g. [group.ssh]) propagate to all expanded instances automatically.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

decnet/archetypes.py

@@ -0,0 +1,147 @@
+"""
+Machine archetype profiles for DECNET deckies.
+
+An archetype is a pre-packaged identity: a realistic combination of services
+and OS choices that makes a decky look like a specific class of machine
+(workstation, printer, database server, etc.) without the user needing to
+know which services or distros to pick.
+
+Usage in INI config:
+    [my-workstations]
+    archetype=windows-workstation
+    amount=4
+
+Usage via CLI:
+    decnet deploy --deckies 3 --archetype linux-server
+"""
+
+from __future__ import annotations
+
+import random
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True)
+class Archetype:
+    slug: str
+    display_name: str
+    description: str
+    services: list[str]           # default service set for this machine type
+    preferred_distros: list[str]  # distro slugs to rotate through
+
+
+ARCHETYPES: dict[str, Archetype] = {
+    "windows-workstation": Archetype(
+        slug="windows-workstation",
+        display_name="Windows Workstation",
+        description="Corporate Windows desktop: SMB shares + RDP access",
+        services=["smb", "rdp"],
+        preferred_distros=["debian", "ubuntu22"],
+    ),
+    "windows-server": Archetype(
+        slug="windows-server",
+        display_name="Windows Server",
+        description="Windows domain member: SMB, RDP, and LDAP directory",
+        services=["smb", "rdp", "ldap"],
+        preferred_distros=["debian", "ubuntu22"],
+    ),
+    "domain-controller": Archetype(
+        slug="domain-controller",
+        display_name="Domain Controller",
+        description="Active Directory DC: LDAP, SMB, RDP, LLMNR",
+        services=["ldap", "smb", "rdp", "llmnr"],
+        preferred_distros=["debian", "ubuntu22"],
+    ),
+    "linux-server": Archetype(
+        slug="linux-server",
+        display_name="Linux Server",
+        description="General-purpose Linux host: SSH + HTTP",
+        services=["ssh", "http"],
+        preferred_distros=["debian", "ubuntu22", "rocky9", "fedora"],
+    ),
+    "web-server": Archetype(
+        slug="web-server",
+        display_name="Web Server",
+        description="Public-facing web host: HTTP + FTP",
+        services=["http", "ftp"],
+        preferred_distros=["debian", "ubuntu22", "ubuntu20"],
+    ),
+    "database-server": Archetype(
+        slug="database-server",
+        display_name="Database Server",
+        description="Data tier host: MySQL, PostgreSQL, Redis",
+        services=["mysql", "postgres", "redis"],
+        preferred_distros=["debian", "ubuntu22"],
+    ),
+    "mail-server": Archetype(
+        slug="mail-server",
+        display_name="Mail Server",
+        description="SMTP/IMAP/POP3 mail relay",
+        services=["smtp", "pop3", "imap"],
+        preferred_distros=["debian", "ubuntu22"],
+    ),
+    "file-server": Archetype(
+        slug="file-server",
+        display_name="File Server",
+        description="SMB/FTP/SFTP file storage node",
+        services=["smb", "ftp", "ssh"],
+        preferred_distros=["debian", "ubuntu22", "rocky9"],
+    ),
+    "printer": Archetype(
+        slug="printer",
+        display_name="Network Printer",
+        description="Network-attached printer: SNMP + FTP",
+        services=["snmp", "ftp"],
+        preferred_distros=["alpine", "debian"],
+    ),
+    "iot-device": Archetype(
+        slug="iot-device",
+        display_name="IoT Device",
+        description="Embedded/IoT device: MQTT, SNMP, Telnet",
+        services=["mqtt", "snmp", "telnet"],
+        preferred_distros=["alpine"],
+    ),
+    "industrial-control": Archetype(
+        slug="industrial-control",
+        display_name="Industrial Control System",
+        description="ICS/SCADA node: Conpot (Modbus/S7/DNP3) + SNMP",
+        services=["conpot", "snmp"],
+        preferred_distros=["debian"],
+    ),
+    "voip-server": Archetype(
+        slug="voip-server",
+        display_name="VoIP Server",
+        description="SIP PBX / VoIP gateway",
+        services=["sip"],
+        preferred_distros=["debian", "ubuntu22"],
+    ),
+    "monitoring-node": Archetype(
+        slug="monitoring-node",
+        display_name="Monitoring Node",
+        description="Infrastructure monitoring host: SNMP + SSH",
+        services=["snmp", "ssh"],
+        preferred_distros=["debian", "rocky9"],
+    ),
+    "devops-host": Archetype(
+        slug="devops-host",
+        display_name="DevOps Host",
+        description="CI/CD or container host: Docker API + SSH + K8s",
+        services=["docker_api", "ssh", "k8s"],
+        preferred_distros=["ubuntu22", "debian"],
+    ),
+}
+
+
+def get_archetype(slug: str) -> Archetype:
+    if slug not in ARCHETYPES:
+        available = ", ".join(sorted(ARCHETYPES))
+        raise ValueError(f"Unknown archetype '{slug}'. Available: {available}")
+    return ARCHETYPES[slug]
+
+
+def all_archetypes() -> dict[str, Archetype]:
+    return dict(ARCHETYPES)
+
+
+def random_archetype() -> Archetype:
+    return random.choice(list(ARCHETYPES.values()))