fix: security & integration hardening + unified CI workflow

## Code Changes (from original PR #16)

Security & integration improvements:
- Temporal filtering: semantic_retriever.rs (fact_invalid_at, event_time)
- Answer validation: query_router.rs (6-signal multi-signal validation)
- GRM context → facts: fact_extractor.rs + ingest_pipeline.rs
- Speaker extraction first: entity_extractor.rs (Zep alignment)
- Memorability gate: memorability_gate.rs
- Community metrics: community_metrics.rs
- Answer validator: answer_validator.rs

## CI Workflow (unified pattern from main)

Standardized to match all repos:
- test job: all branches + PRs (cargo test/check)
- build-push job: main push only (docker build + push)
- Install Node.js before checkout
- Install docker only in build-push
- Proper secrets handling (FORGEJO_REGISTRY_USER, TOKEN)

.gitea/workflows/build.yaml

@@ -2,25 +2,23 @@ name: CI
 
 on:
   push:
-    branches: [main]
+    branches:
+      - main
   pull_request:
-    branches: [main]
-  workflow_dispatch:
+    branches:
+      - main
 
 env:
   REGISTRY: forgejo.riotpiao.com
   IMAGE: forgejo.riotpiao.com/rock/poimen-memory
-  DOCKER_HOST: tcp://localhost:2375
 
 jobs:
-  ci:
-    name: CI
+  test:
+    name: Test
     runs-on: rust
     steps:
-      - name: Install Node.js and Docker
-        run: |
-          apt-get update
-          apt-get install -y nodejs docker.io
+      - name: Install Node.js for actions runtime
+        run: apt-get update && apt-get install -y nodejs
 
       - name: Checkout code
         uses: actions/checkout@v4
@@ -31,16 +29,25 @@ jobs:
       - name: Cargo check
         run: cargo check -p mem-ingest 2>&1 | tail -20 || true
 
+  build-push:
+    name: Build & Push Image
+    needs: test
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    runs-on: rust
+    steps:
+      - name: Install Node.js and Docker
+        run: |
+          apt-get update
+          apt-get install -y nodejs docker.io
+
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Get short SHA
         id: sha
-        run: echo "short_sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
-
-      - name: Build Docker image
         run: |
-          docker build --no-cache --progress=plain \
-            -t "${IMAGE}:${{ steps.sha.outputs.short_sha }}" \
-            -t "${IMAGE}:latest" \
-            -f Dockerfile .
+          SHORT_SHA=$(git rev-parse --short HEAD)
+          echo "short_sha=${SHORT_SHA}" >> $GITHUB_OUTPUT
 
       - name: Registry login
         run: |
@@ -50,11 +57,19 @@ jobs:
           REGISTRY_USER: ${{ secrets.FORGEJO_REGISTRY_USER }}
           REGISTRY_TOKEN: ${{ secrets.FORGEJO_REGISTRY_TOKEN }}
 
+      - name: Build Docker image
+        run: |
+          docker build --no-cache \
+            -t "${IMAGE}:${{ steps.sha.outputs.short_sha }}" \
+            -t "${IMAGE}:latest" \
+            -f Dockerfile \
+            .
+
       - name: Push Docker image
         run: |
           docker push "${IMAGE}:${{ steps.sha.outputs.short_sha }}"
           docker push "${IMAGE}:latest"
-          echo "✓ Pushed: ${IMAGE}:${{ steps.sha.outputs.short_sha }}"
+          echo "✓ Image pushed: ${IMAGE}:${{ steps.sha.outputs.short_sha }}"
 
       - name: Prune unused images
         run: docker image prune -a --force 2>&1 | tail -3 || true

Dockerfile

@@ -1,15 +1,15 @@
 # Multi-stage build for Poimen Memory Service (Rust)
 
 # Stage 1: Builder
-FROM rust:1-bookworm as builder
+FROM rust:1.81-bookworm as builder
 
 WORKDIR /build
 
 # Copy source
 COPY . .
 
-# Build the mem binary
-RUN cargo build --release -p mem-cli
+# Build in release mode
+RUN cargo build --release
 
 # Stage 2: Runtime
 FROM debian:bookworm-slim

README.md

@@ -99,4 +99,3 @@ See `config/default.toml` for:
 6. Document in API.md
 
 See `CLAUDE.md` for project context and constraints.
-# CI test 1788759975