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-bank/bank-overrides.conf

@@ -0,0 +1,39 @@
+# Regional GOA bank — no IBAN / Nexus / fiat conversion.
+# Container: /etc/libeufin/bank-overrides.conf
+# Inlined last from /etc/libeufin/libeufin-bank.conf via @inline@ bank-overrides.conf
+
+[libeufin-bank]
+CURRENCY = GOA
+WIRE_TYPE = x-taler-bank
+BASE_URL = https://bank.hacktivism.ch/
+NAME = "GOA Exploration Bank"
+SERVE = tcp
+PORT = 9012
+BIND_TO = 0.0.0.0
+DEFAULT_DEBT_LIMIT = GOA:100000
+ALLOW_REGISTRATION = yes
+ALLOW_CONVERSION = no
+REGISTRATION_BONUS = GOA:0
+WIRE_TRANSFER_FEES = GOA:0
+DEFAULT_EXCHANGE = https://exchange.hacktivism.ch/
+
+[currency-goa]
+ENABLED = YES
+name = "GOA exploration currency"
+code = GOA
+fractional_input_digits = 8
+fractional_normal_digits = 0
+fractional_trailing_zero_digits = 0
+alt_unit_names_are_symbols = NO
+alt_unit_names = {"24":"Yotta-GOA","21":"Zetta-GOA","18":"Exa-GOA","15":"Peta-GOA","12":"Tera-GOA","9":"Giga-GOA","6":"Mega-GOA","3":"Kilo-GOA","0":"GOA","-1":"Deci-GOA","-2":"Centi-GOA","-3":"Milli-GOA","-6":"Micro-GOA","-7":"Deci-Micro-GOA","-8":"Atomic-GOA"}
+
+[currency-kudos]
+ENABLED = NO
+[currency-testkudos]
+ENABLED = NO
+[currency-euro]
+ENABLED = NO
+[currency-swiss-francs]
+ENABLED = NO
+[currency-netzbon]
+ENABLED = NO