feat(ansible): add OpenWrt dlink AP configuration

Add community.openwrt collection, dlink host to inventory,
openwrt role with system/network/firewall tasks, and two
playbooks: dlink-init.yml for one-time bootstrap from factory
IP, and openwrt.yml for ongoing idempotent configuration.

Network: MGMT untagged + LAN (vlan2) tagged on WAN port trunk
to MikroTik ether3. Firewall zones replace factory WAN/LAN
with mgmt (input ACCEPT) and lan (forward ACCEPT, AP mode).

ansible/roles/openwrt/tasks/main.yml

@@ -0,0 +1,19 @@
+---
+- name: Preflight — verify connectivity
+  ansible.builtin.import_tasks: preflight.yml
+
+- name: System configuration
+  ansible.builtin.import_tasks: system.yml
+
+- name: Network configuration
+  ansible.builtin.import_tasks: network.yml
+
+- name: Firewall configuration
+  ansible.builtin.import_tasks: firewall.yml
+
+- name: Wireless configuration
+  ansible.builtin.import_tasks: wireless.yml
+
+- name: Package management
+  ansible.builtin.import_tasks: packages.yml
+  when: openwrt_packages | length > 0