docs: new root as prior history lost (orphan + GC); ~215 commits not recoverable

scripts/taler-wallet-cli/goa-posix-withdraw-pay.sh

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+#!/bin/sh
+# Unix/macOS · monorepo CLI (same flow as bank landing unix pane)
+#
+# install (once):
+#   git + node (LTS) + monorepo build deps
+#   git clone https://git.taler.net/taler-typescript-core.git
+#   cd taler-typescript-core && ./bootstrap && ./configure && make
+#
+# run from taler-typescript-core after make (needs: node, wget|curl, grep)
+set -eu
+
+command -v node >/dev/null 2>&1 || { echo "install: node (LTS)" >&2; exit 1; }
+[ -f packages/taler-wallet-cli/bin/taler-wallet-cli.mjs ] || {
+  echo "install/build: run from taler-typescript-core after make" >&2
+  exit 1
+}
+command -v wget >/dev/null 2>&1 || command -v curl >/dev/null 2>&1 || {
+  echo "install: wget or curl" >&2
+  exit 1
+}
+
+# monorepo CLI + private wallet DB (not system package / default home DB)
+tw() {
+  node packages/taler-wallet-cli/bin/taler-wallet-cli.mjs \
+    --wallet-db="${TMPDIR:-/tmp}/taler-wallet-goa.sqlite3" \
+    --no-throttle "$@"
+}
+
+# mint from bank, register exchange, withdraw GOA:10
+(wget -q -O demo-withdraw.json https://bank.hacktivism.ch/intro/demo-withdraw.json || \
+  curl -fsS -o demo-withdraw.json https://bank.hacktivism.ch/intro/demo-withdraw.json) && \
+tw exchanges add https://exchange.hacktivism.ch/ && \
+tw exchanges accept-tos https://exchange.hacktivism.ch/ && \
+tw withdraw accept-uri --exchange https://exchange.hacktivism.ch/ \
+  "$(grep -o 'taler://[^"]*' demo-withdraw.json)" && \
+tw run-until-done && \
+
+# pay orbit-sticker (GOA:2); balance ends at GOA:8
+tw handle-uri --yes \
+  taler://pay-template/taler.hacktivism.ch/instances/goa-shop/orbit-sticker && \
+tw run-until-done && tw balance