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/payload.h

@@ -0,0 +1,68 @@
+// 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:    payload.h
+// Desc:    Declares payload release mechanism interface on GPIO16.
+// Created: 2026
+
+#ifndef PAYLOAD_H
+#define PAYLOAD_H
+
+#include <stdbool.h>
+
+#define LED_RED_PIN    16
+#define LED_GREEN_PIN  17
+#define LED_YELLOW_PIN 18
+
+/**
+ * @brief Initialize GPIO16 (Red failure LED) and GPIO17 (Green success LED).
+ *
+ * @param None.
+ * @return None.
+ */
+void init_payload(void);
+
+/**
+ * @brief Update tri-color GNSS status LEDs from fix state and satellites.
+ *
+ * Red (GP16) = no satellites in view; Yellow (GP18) = satellites in view
+ * while acquiring; Green (GP17) = active 3D fix.
+ *
+ * @param fix True if an active 3D GPS fix is held.
+ * @param siv Number of satellites currently in view.
+ * @return None.
+ */
+void set_gnss_leds(bool fix, int siv);
+
+/**
+ * @brief Energize payload latch and illuminate both LEDs at target coordinates.
+ *
+ * @param None.
+ * @return None.
+ */
+void release_payload(void);
+
+#endif // PAYLOAD_H
+