Tori: AI agent workflow manager - initial implementation

Rust (Axum) + Vue 3 + SQLite. Features:
- Project CRUD REST API with proper error handling
- Per-project agent loop (mpsc + broadcast channels)
- LLM-driven plan generation and replan on user feedback
- SSH command execution with status streaming
- WebSocket real-time updates to frontend
- Four-zone UI: requirement, plan (left), execution (right), comment

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

Dockerfile

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+# Stage 1: Build frontend
+FROM node:22-alpine AS frontend
+WORKDIR /app/web
+COPY web/package.json web/package-lock.json ./
+RUN npm ci
+COPY web/ ./
+RUN npm run build
+
+# Stage 2: Build backend
+FROM rust:1.84-alpine AS backend
+RUN apk add --no-cache musl-dev
+WORKDIR /app
+COPY Cargo.toml Cargo.lock ./
+COPY src/ ./src/
+RUN cargo build --release
+
+# Stage 3: Runtime
+FROM alpine:3.21
+RUN apk add --no-cache openssh-client ca-certificates
+WORKDIR /app
+COPY --from=backend /app/target/release/tori .
+COPY --from=frontend /app/web/dist ./web/dist/
+
+EXPOSE 3000
+CMD ["./tori"]