docs: round out the docs for Z7's example additions

* examples/README.md — replace the single-row WASM section with a build
  block (one-time `wasm-pack` build), a serve note, and the full
  five-row table (`index`, `backtest`, `live_trading`, `multi_timeframe`,
  `parallel_assets`).
* examples/wasm/README.md — new dedicated index for the WASM demos
  with the build and serve commands and a description of every file
  including the module worker companion.
* CHANGELOG.md `[Unreleased]` gains three bullets: the Python and Node
  `fetch_btcusdt` siblings; the four new WASM browser demos; and the
  three new wiki pages from Z6 (TA-Lib-Migration, Cookbook, FAQ).

CHANGELOG.md

@@ -70,11 +70,27 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   tree: Rust moved into a new `examples/rust/` workspace member crate
   (`wickra-examples`, run via `cargo run -p wickra-examples --bin <name>`),
   Node into `examples/node/` with its own `package.json` linking `wickra` via
-  `file:../../bindings/node`, and the WASM browser demo into
+  `file:../../bindings/node`, and the WASM browser demos into
   `examples/wasm/`. The bundled BTCUSDT datasets move alongside them at
   `examples/data/`. Six new examples close the cross-language parity matrix:
   streaming demos for Python and Rust; multi-timeframe and parallel-assets
   demos for both Rust and Node.
+- Cross-language data-generator parity: `examples/python/fetch_btcusdt.py`
+  (stdlib only: `urllib` + `json` + `csv`) and `examples/node/fetch_btcusdt.js`
+  (Node 18+ built-in `fetch`) mirror the Rust `fetch_btcusdt` binary —
+  byte-for-byte identical CSV output on the same Binance snapshot.
+- Four additional WebAssembly browser demos under `examples/wasm/`
+  alongside the original `index.html`: `backtest.html` (fetch + basket of
+  indicators), `live_trading.html` (browser-native `WebSocket` to
+  Binance), `multi_timeframe.html` (in-page resample) and
+  `parallel_assets.html` + `parallel_worker.js` (module-Worker pool with
+  serial-vs-parallel speedup). The cross-language matrix is now closed
+  for every cell where the pattern makes sense.
+- Three new wiki pages: `TA-Lib-Migration.md` (full mapping table from
+  `talib.X(...)` calls to Wickra), `Cookbook.md` (seven concrete
+  strategy recipes — RSI mean reversion, MACD crossover, Bollinger
+  breakout, ADX-gated trend, multi-timeframe confirmation, SuperTrend,
+  chained indicators) and `FAQ.md`. All three linked from `Home.md`.
 
 ### Fixed
 - `Timeframe::floor` no longer overflows for timestamps near `i64::MIN`.

examples/README.md

@@ -51,9 +51,22 @@ cd ../../examples/node && npm install        # links wickra + installs `ws`
 
 ## WebAssembly — `examples/wasm/`
 
-| Example | What it does | Run |
+Build the WASM module first (one-time):
-| --- | --- | --- |
+
-| `index.html` | Browser demo: streams a price series through six indicators and draws a live `<canvas>` chart. | `wasm-pack build bindings/wasm --target web --release --features panic-hook`, then serve the repository root and open `examples/wasm/index.html` |
+```bash
+wasm-pack build bindings/wasm --target web --release --features panic-hook
+```
+
+Then serve the repository root (`python -m http.server`, `npx http-server`,
+…) and open the demo you want in a browser.
+
+| Example | What it does |
+| --- | --- |
+| `index.html` | Streams a synthetic price series through six indicators and draws a live `<canvas>` chart. |
+| `backtest.html` | Streams a fetched OHLCV CSV through a basket of indicators (SMA, EMA, RSI, MACD, Bollinger, ATR, ADX, OBV) and prints a per-series summary table. |
+| `live_trading.html` | Opens a browser-native `WebSocket` to Binance, runs RSI / MACD / Bollinger and flags BUY/SELL candidates. |
+| `multi_timeframe.html` | Fetches a 1-minute CSV, rolls it up to 5m / 15m / 1h / 4h / 1d in-page, prints RSI / MACD hist / ADX per timeframe. |
+| `parallel_assets.html` | Spawns a pool of module Workers (each loading its own copy of the WASM module) and reports the speedup over a serial baseline. |
 
 ## Example datasets
 

examples/wasm/README.md

@@ -0,0 +1,51 @@
+# Wickra WASM examples
+
+Browser demos for the `wickra-wasm` WebAssembly binding. Every demo loads
+the module the same way (`init()` then construct indicators) so the
+patterns transfer one-to-one to your own page.
+
+## Build
+
+The WASM module ships as a `wasm-pack` `--target web` bundle. Build it
+once from the repository root:
+
+```bash
+wasm-pack build bindings/wasm --target web --release --features panic-hook
+```
+
+This drops `bindings/wasm/pkg/` with the `.wasm` binary, the JS loader
+and TypeScript types. Every demo here imports the loader via
+`../../bindings/wasm/pkg/wickra_wasm.js`.
+
+## Serve
+
+ES-module workers and `fetch()` over CSV both need a real HTTP origin,
+not `file://`. Any static server from the repository root works:
+
+```bash
+# Python:
+python -m http.server 8000
+
+# Or Node:
+npx http-server -p 8000
+```
+
+Then open the demo you want at `http://localhost:8000/examples/wasm/<file>`.
+
+## Demos
+
+| File | What it does |
+| --- | --- |
+| `index.html` | The original showcase: streams a synthetic price series through six indicators and draws a live `<canvas>` chart with `SMA`, `EMA`, `RSI`, `MACD`, `BollingerBands` and `ATR` cards. |
+| `backtest.html` | Backtest: fetches an OHLCV CSV (default the bundled BTCUSDT daily dataset), streams every candle through a basket of eight indicators, prints a summary table. Mirrors `examples/python/backtest.py`. |
+| `live_trading.html` | Browser-native `WebSocket` to Binance kline streams; runs RSI / MACD / Bollinger on the incoming closes and flags BUY/SELL candidates when the three agree. Mirrors `examples/python/live_trading.py`. |
+| `multi_timeframe.html` | Fetches a 1-minute CSV, rolls it up in-page to 5m / 15m / 1h / 4h / 1d buckets and prints RSI / MACD-histogram / ADX per timeframe. Mirrors `examples/python/multi_timeframe.py`. |
+| `parallel_assets.html` | Synthetic `(assets, bars)` panel, serial baseline on the main thread vs. a pool of module Workers each loading its own copy of the WASM module. Mirrors `examples/python/parallel_assets.py`. |
+| `parallel_worker.js` | Module worker used by `parallel_assets.html` (not loaded directly). |
+
+## See also
+
+- [Quickstart: WASM](../../docs/wiki/Quickstart-WASM.md) — module-load
+  flow, `wasm-pack` targets, and the streaming API.
+- [examples/README.md](../README.md) — cross-language index, including
+  the Rust, Python and Node siblings of every demo above.