feat: Setup hostname, timezone, and secure sshd

roles/config/handlers/main.yml

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+- name: Reload dropbear
+  service:
+    name: dropbear
+    state: reloaded
+    enabled: yes

roles/config/meta/main.yml

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+dependencies:
+  - role: gekmihesg.openwrt

roles/config/tasks/main.yml

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+- name: Setup hostname
+  when: inventory_hostname is defined
+  uci:
+    command: set
+    key: 'system.@system[0]'
+    value:
+      hostname: "{{ inventory_hostname }}"
+
+- name: Setup timezone
+  uci:
+    command: set
+    key: 'system.@system[0]'
+    value:
+      timezone: "{{ timezone | default(system[template | default('default')].timezone) }}"
+      zonename: "{{ zonename | default(system[template | default('default')].zonename) }}"
+
+- name: commit changes
+  uci:
+    command: commit
+    key: system
+
+- name: Update authorized keys
+  lineinfile:
+    path: /etc/dropbear/authorized_keys
+    line: "{{ lookup('file', '/home/' + lookup('env', 'USER') + '/.ssh/id_ed25519.pub') }}"
+    state: present
+    create: yes
+
+- name: Disable Root password authentication
+  uci:
+    command: set
+    key: "dropbear.@dropbear[0]"
+    value:
+      RootPasswordAuth: "off"
+      PasswordAuth: "off"
+    notify: reload dropbear
+
+- name: Commit changes
+  uci:
+    command: commit
+    key: dropbear

roles/config/vars/main.yml

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+system:
+
+  default: &default_system
+    timezone: 'EST5EDT,M3.2.0,M11.1.0'
+    zonename: 'America/New York'