refactor(vd960Loop): 算法回退到 DLD154V4B，四通道适配

- 用 DLD154V4B vd1_task/per_channel 替换 vds_task 复杂算法
- 移除 FUNCTION_B/二次判断/快速变化/多重确认等增强特性
- 保留平坦性离开算法 (CN200910309382)，每通道独立状态
- 灵敏度表改为 DLD154V4B 4级: {216,108,36,10} / {108,72,18,9}
- 清理废弃类型: FltHistoryManager, Loop_ACS_Info, StageRangeConfig 等
- 首次添加 vd960DBN 完整源码

vd960DBN/BLE/LIB/ble_task_scheduler.S

@@ -0,0 +1,127 @@
+.global Ecall_M_Mode_Handler
+.global Ecall_U_Mode_Handler
+.global LLE_IRQHandler
+
+.extern g_LLE_IRQLibHandlerLocation
+
+.section	.highcode,"ax",@progbits
+.align 2
+.func
+Ecall_M_Mode_Handler:
+Ecall_U_Mode_Handler:
+
+	addi a1, x0, 0x20
+	csrs 0x804, a1
+
+	lw a1, 0 * 4( sp )
+	csrw mepc, a1
+
+	lw x1, 1 * 4( sp )
+	lw x4, 2 * 4( sp )
+	lw x5, 3 * 4( sp )
+	lw x6, 4 * 4( sp )
+	lw x7, 5 * 4( sp )
+	lw x8, 6 * 4( sp )
+	lw x9, 7 * 4( sp )
+	lw x10, 8 * 4( sp )
+	lw x11, 9 * 4( sp )
+	lw x12, 10 * 4( sp )
+	lw x13, 11 * 4( sp )
+	lw x14, 12 * 4( sp )
+	lw x15, 13 * 4( sp )
+	lw x16, 14 * 4( sp )
+	lw x17, 15 * 4( sp )
+	lw x18, 16 * 4( sp )
+	lw x19, 17 * 4( sp )
+	lw x20, 18 * 4( sp )
+	lw x21, 19 * 4( sp )
+	lw x22, 20 * 4( sp )
+	lw x23, 21 * 4( sp )
+	lw x24, 22 * 4( sp )
+	lw x25, 23 * 4( sp )
+	lw x26, 24 * 4( sp )
+	lw x27, 25 * 4( sp )
+	lw x28, 26 * 4( sp )
+	lw x29, 27 * 4( sp )
+	lw x30, 28 * 4( sp )
+	lw x31, 29 * 4( sp )
+
+	addi sp, sp, 32*4
+
+	mret
+	.endfunc
+
+.section	.highcode.LLE_IRQHandler,"ax",@progbits
+.align 2
+.func
+LLE_IRQHandler:
+	addi sp, sp, -32*4
+
+	sw x1, 1 * 4( sp )
+	sw x4, 2 * 4( sp )
+	sw x5, 3 * 4( sp )
+	sw x6, 4 * 4( sp )
+	sw x7, 5 * 4( sp )
+	sw x8, 6 * 4( sp )
+	sw x9, 7 * 4( sp )
+	sw x10, 8 * 4( sp )
+	sw x11, 9 * 4( sp )
+	sw x12, 10 * 4( sp )
+	sw x13, 11 * 4( sp )
+	sw x14, 12 * 4( sp )
+	sw x15, 13 * 4( sp )
+	sw x16, 14 * 4( sp )
+	sw x17, 15 * 4( sp )
+	sw x18, 16 * 4( sp )
+	sw x19, 17 * 4( sp )
+	sw x20, 18 * 4( sp )
+	sw x21, 19 * 4( sp )
+	sw x22, 20 * 4( sp )
+	sw x23, 21 * 4( sp )
+	sw x24, 22 * 4( sp )
+	sw x25, 23 * 4( sp )
+	sw x26, 24 * 4( sp )
+	sw x27, 25 * 4( sp )
+	sw x28, 26 * 4( sp )
+	sw x29, 27 * 4( sp )
+	sw x30, 28 * 4( sp )
+	sw x31, 29 * 4( sp )
+
+	la a1, g_LLE_IRQLibHandlerLocation
+	lw a0, 0(a1)
+	jalr x1, 0(a0)
+
+	lw x1, 1 * 4( sp )
+	lw x4, 2 * 4( sp )
+	lw x5, 3 * 4( sp )
+	lw x6, 4 * 4( sp )
+	lw x7, 5 * 4( sp )
+	lw x8, 6 * 4( sp )
+	lw x9, 7 * 4( sp )
+	lw x10, 8 * 4( sp )
+	lw x11, 9 * 4( sp )
+	lw x12, 10 * 4( sp )
+	lw x13, 11 * 4( sp )
+	lw x14, 12 * 4( sp )
+	lw x15, 13 * 4( sp )
+	lw x16, 14 * 4( sp )
+	lw x17, 15 * 4( sp )
+	lw x18, 16 * 4( sp )
+	lw x19, 17 * 4( sp )
+	lw x20, 18 * 4( sp )
+	lw x21, 19 * 4( sp )
+	lw x22, 20 * 4( sp )
+	lw x23, 21 * 4( sp )
+	lw x24, 22 * 4( sp )
+	lw x25, 23 * 4( sp )
+	lw x26, 24 * 4( sp )
+	lw x27, 25 * 4( sp )
+	lw x28, 26 * 4( sp )
+	lw x29, 27 * 4( sp )
+	lw x30, 28 * 4( sp )
+	lw x31, 29 * 4( sp )
+
+	addi sp, sp, 32*4
+
+	mret
+	.endfunc