configs: rename dirs to match live koopa containers

Reflect host naming in git paths:
- configs/taler-hacktivism/ (was taler-merchant) → container taler-hacktivism
- configs/taler-hacktivism-bank/ (was taler-bank) → container …-bank,
  image taler-hacktivism-banking:live
- configs/taler-exchange-ansible/ already matches …-exchange-ansible
- configs/taler-exchange/ = conf inside that exchange container

Update LIVE.md, README, ports/refs. No secret values.

configs/taler-hacktivism/terms-src/merchant-tos-dual-v0.en.rst

@@ -0,0 +1,43 @@
+No Formal Terms · Dual Currency Notice
+======================================
+
+This is a **self-hosted GNU Taler merchant backend** at
+``taler.hacktivism.ch`` (hacktivism.ch).
+
+**No formal terms of service** from Taler Operations AG (or any other
+third-party portal operator) apply to this instance. This short notice
+is the site policy for using the backend.
+
+Dual currency
+-------------
+
+This backend is configured for **two currencies at once**:
+
+* **GOA** — explorational / experimental currency of the local
+  stack (``exchange.hacktivism.ch``, ``bank.hacktivism.ch``).
+  GOA is **not** legal tender. It has **no guaranteed real-world
+  value**, redemption, or convertibility.
+* **CHF** — Swiss francs, a **real** currency. CHF amounts are
+  real money settled via the CHF exchange configured on this host
+  (taler-ops / TOPS infrastructure as deployed). Treat CHF with
+  the seriousness of ordinary payments.
+
+By creating a merchant instance, accepting payments, or otherwise
+using this service you acknowledge that:
+
+* GOA is for exploration and testing only.
+* CHF involves real money — only use funds you control and can
+  afford to risk on a self-hosted experimental stack.
+* There is no guaranteed availability, support, or uptime.
+* Operators may reset GOA state, change configuration, delete
+  instance data, or interrupt service without notice.
+* Software is provided as-is, without warranty.
+
+If you do not agree, do not use this merchant backend.
+
+Related
+-------
+
+* Exchange (GOA): https://exchange.hacktivism.ch/terms
+* Bank intro: https://bank.hacktivism.ch/intro/
+* Merchant intro: https://taler.hacktivism.ch/intro/