feat: add Volume Profile and TPO Profile to the market profile family (#145)

Volume Profile exposes the full per-bin volume histogram (price bounds plus raw distribution) that Value Area reduces to POC/VAH/VAL. TPO Profile is the volume-agnostic Time-Price-Opportunity letter count over a rolling window. Both candle-input, Vec-output, Market Profile family, with custom Python/Node/WASM bindings, fuzz, benches, tests and docs. Indicator count 290 -> 292.

bindings/node/index.d.ts

@@ -270,6 +270,16 @@ export interface ValueAreaValue {
   vah: number
   val: number
 }
+export interface VolumeProfileValue {
+  priceLow: number
+  priceHigh: number
+  bins: Array<number>
+}
+export interface TpoProfileValue {
+  priceLow: number
+  priceHigh: number
+  counts: Array<number>
+}
 export interface InitialBalanceValue {
   high: number
   low: number
@@ -2064,6 +2074,24 @@ export declare class ValueArea {
   update(high: number, low: number, volume: number): ValueAreaValue | null
   batch(high: Array<number>, low: Array<number>, volume: Array<number>): Array<number>
 }
+export type VolumeProfileNode = VolumeProfile
+export declare class VolumeProfile {
+  constructor(period: number, binCount: number)
+  reset(): void
+  isReady(): boolean
+  warmupPeriod(): number
+  update(high: number, low: number, volume: number): VolumeProfileValue | null
+  batch(high: Array<number>, low: Array<number>, volume: Array<number>): Array<number>
+}
+export type TpoProfileNode = TpoProfile
+export declare class TpoProfile {
+  constructor(period: number, binCount: number)
+  reset(): void
+  isReady(): boolean
+  warmupPeriod(): number
+  update(high: number, low: number): TpoProfileValue | null
+  batch(high: Array<number>, low: Array<number>): Array<number>
+}
 export type InitialBalanceNode = InitialBalance
 export declare class InitialBalance {
   constructor(period: number)