📦 Project structure: PlatformIO configs, proper file extensions, wiring docs

- Rename .txt firmware files to proper extensions (.cpp, .ino, .py)
  so GitHub provides syntax highlighting and IDEs detect them correctly
- Add PlatformIO project configs (platformio.ini) for both Rocket and
  Launcher firmware with all library dependencies pinned, enabling
  one-command builds: `pio run -e rocket -t upload`
- Add requirements.txt for the Python telemetry dashboard
- Add .gitignore for PlatformIO, Arduino IDE, Python, and editor artifacts
- Add docs/WIRING.md with complete pin assignments, I2C addresses,
  servo calibration values, and UDP protocol reference
  (reverse-engineered from firmware source)
- Rename Simulation/fdsdf.png to OpenRocket_3D_View.png

No functional changes to any firmware or software code.

Firmware/Launcher/platformio.ini

@@ -0,0 +1,20 @@
+; PlatformIO Project Configuration - Launcher Ground Station
+;
+; Build & upload:
+;   pio run -e launcher -t upload
+;
+; Monitor serial:
+;   pio device monitor -b 115200
+
+[env:launcher]
+platform = espressif32
+board = esp32dev
+framework = arduino
+monitor_speed = 115200
+lib_deps =
+    adafruit/Adafruit BMP085 Library@^1.2.4
+    mprograms/QMC5883LCompass@^1.2.3
+    mikalhart/TinyGPSPlus@^1.1.0
+    madhephaestus/ESP32Servo@^3.0.5
+    Wire
+upload_speed = 921600