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

0x0017a_ctf/scripts/demo_artifact.json

@@ -0,0 +1,9 @@
+{
+  "format": "ouroboros-hardened-demo-v1",
+  "memory_kib": 64,
+  "iterations": 3,
+  "parallelism": 1,
+  "salt_hex": "f2d518639a82019dc2d7afa5cdb6d871",
+  "nonce_hex": "1cef790d779e7c04e7f066dd90d080708797671f79efc4e4",
+  "ciphertext_and_tag_hex": "2c23b27e9562b8ed9e08e06dd99db4913e819a778bb47b71bc661e6e731a8154cdb536a4767e9bf8533e031db8e5ae7aadb431cf12d9f9c45fa9b94b80dcbbde"
+}