feat: switch fork branch to drop-multi-memory (removes 825-line multi-memory patch)

The feat/drop-multi-memory branch on gortium/hermes-agent drops commits:
- 7f3092e feat(agent): support multiple simultaneous memory providers
- 5ff3223 test(agent): update memory tests for multi-provider support
- d10c19f docs: update memory-providers.md for multi-provider support
- d0627af fix(test): remove test_memory_plugin_e2e.py

Configs already use memory.provider: honcho (single provider),
so multi-memory code path was dead code. Piper TTS patch kept.

ai/compose.yml

@@ -28,8 +28,8 @@ services:
   hermes:
     build:
       context: ./hermes
-      args:
+      ssh:
-        HERMES_PLUGIN_URLS: "git+https://code.lazyworkhorse.net/gortium/hermes-piper-plugin.git;git+https://code.lazyworkhorse.net/gortium/hermes-identity-plugin.git"
+        - default
     container_name: hermes
     entrypoint: ["/bin/bash", "-c",
       "bash /opt/data/hermes-tools/install.sh && bash /usr/local/bin/run-multi-gateways.sh && exec /usr/bin/tini -g -- /opt/hermes/docker/entrypoint.sh \"$@\"",

ai/hermes/Dockerfile

@@ -1,15 +1,34 @@
 # syntax=docker/dockerfile:1
-# Hermes Agent -- official image + custom plugins layered on top.
+# Hermes Agent -- custom fork build
-# No fork needed — customizations are pip-installable plugins from Gitea.
+# Builds on top of official image + overlays our forked source from Gitea.
+# Requires Docker BuildKit. Pass SSH agent for git clone:
 #   docker compose build hermes
 # Or manually:
-#   DOCKER_BUILDKIT=1 docker build --build-arg HERMES_PLUGIN_URLS="url1 url2" -t hermes-agent:custom .
+#   DOCKER_BUILDKIT=1 docker build --ssh default -t hermes-agent:custom .
 
 # ---------- Base: official Hermes image (system deps, npm, uv, Playwright) ----------
 FROM nousresearch/hermes-agent:latest
 
-# ---------- Plugin URLs (semicolon-separated, set via compose.yml build args) ----------
+# ---------- Overlay our forked source ----------
-ARG HERMES_PLUGIN_URLS=""
+# Uses SSH agent forwarding from the build host (no key baked into image).
+# --exclude node_modules/.venv keeps the base image's pre-built layers intact.
+# Only the Python source, web UI source, and config change.
+RUN --mount=type=ssh \
+    mkdir -p /root/.ssh && \
+    ssh-keyscan -p 2222 code.lazyworkhorse.net >> /root/.ssh/known_hosts 2>/dev/null && \
+    cd /tmp && \
+    GIT_SSH_COMMAND='ssh -p 2222 -o StrictHostKeyChecking=no' \
+    # Branch feat/drop-multi-memory: upstream + Piper TTS patch only (no multi-memory patch)
+    git clone --depth 1 --branch feat/drop-multi-memory \
+    git@code.lazyworkhorse.net:gortium/hermes-agent.git fork && \
+    rm -rf fork/node_modules fork/.venv fork/.git && \
+    cp -a fork/. /opt/hermes/ && \
+    rm -rf /tmp/fork /root/.ssh/
+
+# ---------- Reinstall Python package (editable) ----------
+# Picks up source changes from our fork.
+RUN . /opt/hermes/.venv/bin/activate && \
+    uv pip install --no-cache-dir --no-deps -e /opt/hermes
 
 # ---------- Extra system deps ----------
 USER root
@@ -26,6 +45,8 @@ RUN apt-get update && \
 COPY --chmod=0755 --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/
 
 # ---------- Matrix bridge + extra pip deps ----------
+# Previously installed inline at container startup and persisted via volume mount.
+# Now baked into the image so the fragile venv volume mount can be removed.
 RUN . /opt/hermes/.venv/bin/activate && \
     uv pip install --no-cache-dir 'mautrix[encryption]' openai
 
@@ -56,19 +77,6 @@ os.remove(tgz)
 print('himalaya v1.2.0 installed')
 PYEOF
 
-# ---------- Install custom plugins from URLs ----------
-# HERMES_PLUGIN_URLS is a semicolon-separated list of pip-installable
-# package URLs (e.g. git+https:// or direct .tar.gz archives from Gitea).
-# Each plugin is installed into the Hermes venv.
-RUN if [ -n "$HERMES_PLUGIN_URLS" ]; then \
-        . /opt/hermes/.venv/bin/activate && \
-        IFS=';' read -ra URLS <<< "$HERMES_PLUGIN_URLS" && \
-        for url in "${URLS[@]}"; do \
-            echo "Installing plugin: $url" && \
-            uv pip install --no-cache-dir "$url"; \
-        done; \
-    fi
-
 # ---------- Install multi-gateway launcher ----------
 # Launches one gateway process per profile (HERMES_PROFILES env var)
 COPY --chmod=0755 run-multi-gateways.sh /usr/local/bin/run-multi-gateways.sh