feat(SNNBot): upgrade bot API, fix debug overlay and aiming lines

- Upgrade to robocode_tankroyale_botapi v1.0.7 (SVG viewBox fix)
- Fix Y-axis mirror in aiming line toXY helper
- Resize debug panel to half arena width/height
- Replace neuron boxes with barcode-style spike lines
- Thickness-encoded weight connections (all 216 lines)
- Add aiming line legend (top-left, white text)
- Dynamic aiming line length (distance + 50px overshoot)

SNNBot_garage/src/SNNBot.json

@@ -0,0 +1,11 @@
+{
+  "name": "SNNBot",
+  "version": "0.1.0",
+  "authors": ["Davide Cappellini"],
+  "description": "SNN prototype — population-coded LIF neurons aiming toward enemy",
+  "homepage": "",
+  "countryCodes": ["IT"],
+  "gameTypes": ["classic", "1v1"],
+  "platform": "Nim",
+  "programmingLang": "Nim"
+}