Implement Hardware Support Agent Specification and Workflow

bin/fixtures/intake_full.json

@@ -0,0 +1,14 @@
+{
+    "environment_name": "new_esp32s3_board",
+    "hardware_model": "999",
+    "hardware_model_slug": "NEW_ESP32S3_BOARD",
+    "display_name": "Acme ESP32-S3 Dev Board v1",
+    "architecture": "esp32-s3",
+    "actively_supported": true,
+    "support_level": "1",
+    "source_materials": [
+        "https://example.com/acme-esp32s3-schematic.pdf",
+        "https://example.com/acme-esp32s3-pinout.png"
+    ],
+    "board_notes": "Initial bring-up for v1 PCB only. SX1262 radio on SPI2, OLED on I2C bus."
+}

bin/fixtures/intake_minimal.json

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+{
+    "environment_name": "hypothetical_esp32s3_board",
+    "hardware_model": "9981",
+    "display_name": "Hypothetical ESP32-S3 Board",
+    "architecture": "esp32-s3"
+}

bin/fixtures/intake_multi_env.json

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+{
+    "environment_name": "new_nrf52_tracker",
+    "hardware_model": "998",
+    "hardware_model_slug": "NEW_NRF52_TRACKER",
+    "display_name": "Acme nRF52840 Tracker v2",
+    "architecture": "nrf52840",
+    "actively_supported": null,
+    "support_level": "2",
+    "source_materials": [
+        "https://example.com/acme-tracker-pinout.pdf"
+    ],
+    "board_notes": "Two revisions exist: v2 (SSD1306 OLED) and v2a (no display). This intake covers v2 only."
+}