Rename peo4c to peo

Renames the Python package, environment variables (PEO4C_* to PEO_*), the
SQL helper schema, image paths and the entrypoint script.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docker/initdb/10-peo.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2026 Bart Broere
 # SPDX-License-Identifier: GPL-3.0-or-later
-# Prepares a freshly initialised cluster for peo4c.
+# Prepares a freshly initialised cluster for peo.
 set -euo pipefail
 
 # The bridge connects over 127.0.0.1 with the credentials users log in with, so
@@ -12,7 +12,7 @@ sed -i -E 's/^(host[[:space:]]+[^[:space:]]+[[:space:]]+[^[:space:]]+[[:space:]]
 
 # Create the default AGE graph that neo4j-browser opens on first connect.
 psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "${POSTGRES_DB:-$POSTGRES_USER}" \
-    -v graph="${PEO4C_DEFAULT_GRAPH:-neo4j}" <<'EOSQL'
+    -v graph="${PEO_DEFAULT_GRAPH:-neo4j}" <<'EOSQL'
 LOAD 'age';
 SET search_path = ag_catalog, "$user", public;
 SELECT ag_catalog.create_graph(:'graph')

docker/peo-entrypoint.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2026 Bart Broere
 # SPDX-License-Identifier: GPL-3.0-or-later
-# Runs PostgreSQL (through the stock postgres entrypoint), the peo4c bridge and
+# Runs PostgreSQL (through the stock postgres entrypoint), the peo bridge and
 # pgAdmin side by side. The container stops when PostgreSQL or the bridge exits;
 # pgAdmin is optional and its failure does not take the others down.
 set -euo pipefail
@@ -10,7 +10,7 @@ if [ "${1:-}" != "postgres" ]; then
     exec docker-entrypoint.sh "$@"
 fi
 
-export PEO4C_PG_DATABASE="${PEO4C_PG_DATABASE:-${POSTGRES_DB:-${POSTGRES_USER:-postgres}}}"
+export PEO_PG_DATABASE="${PEO_PG_DATABASE:-${POSTGRES_DB:-${POSTGRES_USER:-postgres}}}"
 
 start_pgadmin() {
     local app=/opt/pgadmin/app
@@ -19,8 +19,8 @@ start_pgadmin() {
     if [ ! -f /var/lib/pgadmin/pgadmin4.db ]; then
         # First start: create the login user and register the bundled PostgreSQL.
         cat > /var/lib/pgadmin/servers.json <<EOF
-{"Servers": {"1": {"Name": "peo4c", "Group": "Servers", "Host": "127.0.0.1", "Port": 5432,
- "MaintenanceDB": "${PEO4C_PG_DATABASE}", "Username": "${POSTGRES_USER:-postgres}", "SSLMode": "prefer"}}}
+{"Servers": {"1": {"Name": "peo", "Group": "Servers", "Host": "127.0.0.1", "Port": 5432,
+ "MaintenanceDB": "${PEO_PG_DATABASE}", "Username": "${POSTGRES_USER:-postgres}", "SSLMode": "prefer"}}}
 EOF
         chown postgres:postgres /var/lib/pgadmin/servers.json
         PGADMIN_SETUP_EMAIL="$email" \
@@ -31,22 +31,22 @@ EOF
             || { rm -f /var/lib/pgadmin/pgadmin4.db; return 1; }
     fi
 
-    gosu postgres /opt/pgadmin/bin/gunicorn --bind "0.0.0.0:${PEO4C_PGADMIN_PORT}" \
+    gosu postgres /opt/pgadmin/bin/gunicorn --bind "0.0.0.0:${PEO_PGADMIN_PORT}" \
         --workers 1 --threads 25 --timeout 0 --chdir "$app" --log-level warning pgAdmin4:app &
     pgadmin_pid=$!
-    echo "peo4c: pgAdmin on http://localhost:${PEO4C_PGADMIN_PORT}/ (login: $email)"
+    echo "peo: pgAdmin on http://localhost:${PEO_PGADMIN_PORT}/ (login: $email)"
 }
 
 docker-entrypoint.sh "$@" &
 pg_pid=$!
 
-cd /opt/peo4c/bridge
-gosu postgres python3 -m peo4c &
+cd /opt/peo/bridge
+gosu postgres python3 -m peo &
 bridge_pid=$!
 
 pgadmin_pid=
-if [ "${PEO4C_PGADMIN}" = "true" ]; then
-    start_pgadmin || echo "peo4c: WARNING: pgAdmin setup failed, continuing without it" >&2
+if [ "${PEO_PGADMIN}" = "true" ]; then
+    start_pgadmin || echo "peo: WARNING: pgAdmin setup failed, continuing without it" >&2
 fi
 
 shutdown() {

docker/pgadmin/config_distro.py

@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: 2026 Bart Broere
 # SPDX-License-Identifier: GPL-3.0-or-later
-# pgAdmin settings for the peo4c image, loaded via CONFIG_DISTRO_FILE_PATH.
+# pgAdmin settings for the peo image, loaded via CONFIG_DISTRO_FILE_PATH.
 # Paths derived from DATA_DIR in pgAdmin's config.py are computed before this
 # file is applied, so they are all set explicitly here.