fix: Restore all files lost during destructive rebase

A previous `git pull --rebase origin main` dropped 177 local commits,
losing 3400+ files across admin-v2, backend, studio-v2, website,
klausur-service, and many other services. The partial restore attempt
(660295e2) only recovered some files.

This commit restores all missing files from pre-rebase ref 98933f5e
while preserving post-rebase additions (night-scheduler, night-mode UI,
NightModeWidget dashboard integration).

Restored features include:
- AI Module Sidebar (FAB), OCR Labeling, OCR Compare
- GPU Dashboard, RAG Pipeline, Magic Help
- Klausur-Korrektur (8 files), Abitur-Archiv (5+ files)
- Companion, Zeugnisse-Crawler, Screen Flow
- Full backend, studio-v2, website, klausur-service
- All compliance SDKs, agent-core, voice-service
- CI/CD configs, documentation, scripts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pca-platform/heuristic-service/Dockerfile

@@ -0,0 +1,41 @@
+# Build stage
+FROM golang:1.21-alpine AS builder
+
+WORKDIR /app
+
+# Install dependencies
+RUN apk add --no-cache git
+
+# Copy go mod files
+COPY go.mod ./
+
+# Initialize module and download dependencies
+RUN go mod tidy || true
+
+# Copy source code
+COPY . .
+
+# Build the binary
+RUN CGO_ENABLED=0 GOOS=linux go build -o /heuristic-service ./cmd/server
+
+# Runtime stage
+FROM alpine:3.19
+
+WORKDIR /app
+
+# Install ca-certificates for HTTPS
+RUN apk add --no-cache ca-certificates wget
+
+# Copy binary from builder
+COPY --from=builder /heuristic-service /app/heuristic-service
+
+# Expose port
+EXPOSE 8085
+
+# Set environment variables
+ENV PORT=8085
+ENV GIN_MODE=release
+ENV CONFIG_PATH=/app/ai-access.json
+
+# Run the service
+CMD ["/app/heuristic-service"]