Course update: lessons, CTF 0x0011a_cb, and documentation

- 0x0011a_cb (Operation Dark Vector): nation-state CTF redesign with an
  AES-128-ECB sealed target and a plaintext launch origin; RP2350 firmware with
  bearing-driven servo, tri-color LEDs, GSV stats, and a realistic no-fix path
- docs: story-driven classified brief, GDB and Ghidra tutorials with deep
  step-throughs, regenerated artifacts and PDFs
- scripts: docstring standard, AES per-student randomizer, telemetry monitor
- week 3 to week 5 lessons: Ghidra patching tutorial, CMSIS-SVD hardware RE,
  double floating-point and GPIO architecture chapters, README structure

0x0011a_cb/include/lcd.h

@@ -0,0 +1,74 @@
+// MIT License
+//
+// Copyright (c) 2026 Kevin Thomas
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//
+// Author:  Kevin Thomas
+// Email:   kevin@mytechnotalent.com
+// GitHub:  https://github.com/mytechnotalent
+// File:    lcd.h
+// Desc:    Declares I2C HD44780 (16x2) LCD interface for telemetry coordinates.
+// Created: 2026
+
+#ifndef LCD_H
+#define LCD_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "hardware/i2c.h"
+
+#define LCD_I2C_INST  i2c1
+#define LCD_SDA_PIN   2
+#define LCD_SCL_PIN   3
+#define LCD_BAUD      100000
+
+/**
+ * @brief Initialize I2C0 peripheral and detect/configure 1602 LCD backpack.
+ *
+ * @param None.
+ * @return None.
+ */
+void init_lcd(void);
+
+/**
+ * @brief Render current latitude and longitude on the 16x2 character display.
+ *
+ * Row 0: LAT: dd.dddddd N
+ * Row 1: LON: dd.dddddd W
+ *
+ * @param lat Current latitude in decimal degrees.
+ * @param lon Current longitude in decimal degrees.
+ * @return None.
+ */
+void lcd_show_coords(double lat, double lon);
+
+/**
+ * @brief Render GNSS acquisition telemetry (satellites and C/N0) on the LCD.
+ *
+ * Row 0: SAT: nn CNO: nn
+ * Row 1: ACQUIRING... when satellites are in view, else NO SIGNAL
+ *
+ * @param sats Number of satellites currently in view.
+ * @param cno Best carrier-to-noise ratio in dBHz.
+ * @return None.
+ */
+void lcd_show_gnss(int sats, int cno);
+
+#endif // LCD_H