Add Dell OptiPlex 3070 Micro (#3992)

* Add Dell OptiPlex 3070 Micro

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

* Rename to match model name convention

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

* Remove front_image/rear_image (no images provided)

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

* Update power port type and add airflow specification

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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Harry <Harry@cadby.co.uk>

Author: 3 people

device-types/Dell/optiplex-3070-micro.yaml

@@ -0,0 +1,22 @@
+---
+manufacturer: Dell
+model: OptiPlex 3070 Micro
+slug: dell-optiplex-3070-micro
+u_height: 0
+is_full_depth: false
+part_number: D10U003
+comments: '[Dell OptiPlex 3070 Micro Setup and Specifications](https://www.dell.com/support/manuals/en-us/optiplex-3070-micro/opti3070_micro_setiup_specs/)'
+# Weight approx. 1.18 kg (typical configuration, may vary)
+weight: 1.18
+weight_unit: kg
+airflow: front-to-rear
+console-ports:
+  - name: Serial
+    type: de-9
+interfaces:
+  - name: NIC
+    type: 1000base-t
+power-ports:
+  - name: PSU
+    type: dc-terminal
+    maximum_draw: 65