Phase 4 enhancements: WebSocket auth, HTTPS UI, plugin hooks, build fixes

Security:
- Add token-based WebSocket authentication (closes critical security gap)
  - In-memory token store with 24h TTL (token_store.py)
  - POST /api/auth/token exchanges Basic Auth for WS token
  - GET /api/auth/status public endpoint for auth check
  - WebSocket validates token query param, rejects with close code 4401
  - Frontend LoginPrompt modal for credential entry
  - WebSocket manager handles full auth flow with auth_required state
  - No-op when AUTH_ENABLED=false (preserves existing behavior)

HTTPS:
- Wire HTTPS toggle in Settings UI (POST /api/system/ssl/toggle)
- Add certificate regeneration button
- Display SSL info (expiration, SANs, SHA256 fingerprint)

Plugins:
- Wire trigger_hook("pm3_command") in PM3 service
- Wire trigger_hook("update_check") in update manager

Build/Infrastructure:
- Enable NetworkManager in pi-gen AP setup stage
- Add HF booster board detection patch for Proxmark3
- Update LED PWM control patch
- Fix BLE adapter, UPS drivers, WiFi manager improvements
- Update HTTPS support stage script

Documentation:
- Update PROJECT_STATUS.md and IMPLEMENTATION_PRIORITIES.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

LED_MAPPINGS.md

@@ -6,12 +6,12 @@ Based on hardware testing with Proxmark3 Easy and `LED_ORDER=PM3EASY`:
 
 ### LED Configuration
 
-| LED | Color  | GPIO Pin | PWM Channel | Brightness | Physical Position |
-|-----|--------|----------|-------------|------------|-------------------|
-| A   | Green  | PA0      | PWM0        | ✅ 0-100%  | 1st (leftmost)    |
-| B   | Blue   | PA2      | PWM2        | ✅ 0-100%  | 4th (rightmost)   |
-| C   | Orange | PA9      | None        | On/Off     | 2nd               |
-| D   | Red    | PA8      | None        | On/Off     | 3rd               |
+| LED | Color  | GPIO Pin | PWM Channel | Brightness | Effects | Physical Position |
+|-----|--------|----------|-------------|------------|---------|-------------------|
+| A   | Green  | PA0      | PWM0        | ✅ 0-100%  | All     | 1st (leftmost)    |
+| B   | Blue   | PA2      | PWM2        | ✅ 0-100%  | All     | 4th (rightmost)   |
+| C   | Orange | PA9      | None        | On/Off     | Blink   | 2nd               |
+| D   | Red    | PA8      | None        | On/Off     | Blink   | 3rd               |
 
 **Physical LED order (left to right):** Green, Orange, Red, Blue
 
@@ -40,18 +40,18 @@ From `include/config_gpio.h` with `LED_ORDER_PM3EASY`:
 
 With default LED ordering (no `LED_ORDER_PM3EASY`):
 
-| LED | Color   | GPIO Pin | PWM Channel | Notes |
-|-----|---------|----------|-------------|-------|
-| A   | Orange  | PA0      | PWM0        | ✅ Brightness capable |
-| B   | Green   | PA8      | None        | On/Off only |
-| C   | Red     | PA9      | None        | On/Off only |
-| D   | Red2    | PA2      | PWM2        | ✅ Brightness capable |
+| LED | Color   | GPIO Pin | PWM Channel | Brightness | Effects |
+|-----|---------|----------|-------------|------------|---------|
+| A   | Orange  | PA0      | PWM0        | ✅ 0-100%  | All     |
+| B   | Green   | PA8      | None        | On/Off     | Blink   |
+| C   | Red     | PA9      | None        | On/Off     | Blink   |
+| D   | Red2    | PA2      | PWM2        | ✅ 0-100%  | All     |
 
-**Note:** Only LEDs on PA0 and PA2 can use PWM brightness control on any PM3 variant.
+**Note:** Only LEDs on PA0 and PA2 can use PWM brightness control and PWM effects (pulse, fade) on any PM3 variant.
 
 ## Usage Examples
 
-### Proxmark3 Easy
+### Basic LED Control
 
 ```bash
 # Green LED at 50% brightness
@@ -70,9 +70,45 @@ hw led --led d --toggle
 hw led --led a,b --brightness 30
 ```
 
+### LED Effects
+
+Three effects are available: **pulse**, **fade**, and **blink**.
+
+```bash
+# Pulse effect (PWM LEDs only: A, B)
+# Smoothly fades in and out
+hw led --led a --pulse                          # 5 cycles @ 500ms default
+hw led --led a,b --pulse --count 10             # 10 cycles
+hw led --led a --pulse --speed 300              # Faster pulse (300ms cycle)
+hw led --led b --pulse --count 0                # Infinite until button press
+
+# Fade effect (PWM LEDs only: A, B)
+# Starts at full brightness, fades to off
+hw led --led a --fade                           # Default 500ms fade
+hw led --led a,b --fade --speed 1000            # Slower 1-second fade
+
+# Blink effect (ALL LEDs supported: A, B, C, D)
+# Alternates on/off
+hw led --led a,b,c,d --blink                    # All LEDs, 5 blinks
+hw led --led c,d --blink --count 20             # Non-PWM LEDs work too
+hw led --led all --blink --speed 200            # Fast blink (200ms cycle)
+hw led --led a --blink --count 0                # Infinite until stopped
+```
+
+### Effect Parameters
+
+| Parameter | Description | Range | Default |
+|-----------|-------------|-------|---------|
+| `--speed` | Cycle time in milliseconds | 50-10000 | 500 |
+| `--count` | Number of effect cycles | 0-65535 | 5 |
+
+**Note:** `--count 0` runs the effect indefinitely until interrupted by:
+- Pressing the button on the Proxmark3 device
+- Sending any other command
+
 ### Multi-Device Identification
 
-Use brightness levels to distinguish between multiple Proxmark3 devices:
+Use brightness levels and effects to distinguish between multiple Proxmark3 devices:
 
 ```bash
 # Device 1: Dim green
@@ -81,9 +117,11 @@ hw led --led a --brightness 20
 # Device 2: Bright blue
 hw led --led b --brightness 100
 
-# Device 3: Medium green + dim blue
-hw led --led a --brightness 60
-hw led --led b --brightness 30
+# Device 3: Pulsing green (easy to spot)
+hw led --led a --pulse --count 0
+
+# Device 4: Fast blinking all LEDs
+hw led --led all --blink --speed 200 --count 0
 ```
 
 ## Hardware Testing Notes
@@ -102,5 +140,6 @@ hw led --led b --brightness 30
 
 ---
 
-**Last Updated:** 2025-12-02
+**Last Updated:** 2026-01-06
 **Hardware:** Proxmark3 Easy with LED_ORDER=PM3EASY
+**Effects Added:** pulse, fade, blink (v1.1)