Fix all 8 firmware bugs with regression tests

Bugs fixed in adf4382a_manager.c:
- Bug #1: Move initialized=true before sync setup, propagate sync failure
- Bug #3: Implement TriggerTimedSync with sw_sync pulse (was no-op)
- Bug #5: Replace GPIO-only placeholder with TIM3 PWM for DELADJ
- Bug #7: Correct GPIOG pin definitions to match CubeMX (pins 6-15)

Bugs fixed in main.cpp:
- Bug #2: Remove pre-reset ad9523_setup() call (keep only post-reset)
- Bug #4: Move init error check before phase shift calls
- Bug #6: Fix timer variable (last_check -> last_check1) in temp block
- Bug #8: Uncomment uart_print/uart_println debug helpers

Test harness updates:
- All 8 tests rewritten to assert correct post-fix behavior
- Added TIM PWM mock (SPY_TIM_PWM_START/STOP/SET_COMPARE)
- Added mock_adf4382_set_timed_sync_retval for failure injection
- Updated shims and Makefile for new test dependencies
- All 8 tests pass: make clean && make test -> 8/8 passed

9_Firmware/9_1_Microcontroller/tests/Makefile

@@ -92,9 +92,9 @@ test_bug2_ad9523_double_setup: test_bug2_ad9523_double_setup.c $(MOCK_OBJS)
 test_bug6_timer_variable_collision: test_bug6_timer_variable_collision.c $(MOCK_OBJS)
 	$(CC) $(CFLAGS) $(INCLUDES) $< $(MOCK_OBJS) -o $@
 
-# Bug 7 and 8 don't even need mock objects — pure static analysis
-test_bug7_gpio_pin_conflict: test_bug7_gpio_pin_conflict.c
-	$(CC) $(CFLAGS) -I. $< -o $@
+# Bug 7 needs shim headers + mock objects (post-fix test includes shim adf4382a_manager.h)
+test_bug7_gpio_pin_conflict: test_bug7_gpio_pin_conflict.c $(MOCK_OBJS)
+	$(CC) $(CFLAGS) $(INCLUDES) $< $(MOCK_OBJS) -o $@
 
 test_bug8_uart_commented_out: test_bug8_uart_commented_out.c
 	$(CC) $(CFLAGS) -I. $< -o $@