Add security and reliability and add stubs for non essential controls

CLAUDE.md

@@ -396,6 +396,16 @@ SUMMARY OF Controls:
   │ m   │ Calibrator stretch                  │       │          │      ✓       │            │         │     │
   └─────┴─────────────────────────────────────┴───────┴──────────┴──────────────┴────────────┴─────────┴─────┘
 
+Table for general controls not implimented on the keyboard in the table above:
+
+1. Intensity
+2. Focus
+3. Astignetism
+4. Gain
+5. rain clutter
+6. water wave clutter
+7. graticule light intensity
+
 SUMMARY of target handling:
 
 The traffic cop handles anything that is coming from the simulator as well as the raspberry pi's
@@ -413,6 +423,18 @@ It can run as a separate thread. It will not write data to anywhere except when
 
 CONTROLS
 
+Every control listed above — both keyboard controls and the 7 general operator controls —
+shall have a corresponding default constant in settings.h. This allows any startup value
+to be changed at compile time without touching scope or rendering code.
+
+The 7 general controls (Intensity, Focus, Astigmatism, Gain, Rain Clutter, Wave Clutter,
+Graticule Intensity) are physical encoder controls not yet purchased. Their placeholder
+default constants are defined in settings.h. KnobPanel (Thread 3) will compile and run
+from the start but will idle without ever acquiring Mutex A until real hardware is wired
+in. SharedRenderState holds the default values unchanged; Thread 1 reads and applies them
+every frame. No feature flags or conditional compilation are needed — the code path is
+complete end-to-end, always at the compile-time default.
+
 Things to note about the keyboard type controls. 
 The letter on the keyboard are temporary. When I get around to making
 the operators panel, this all will go away.