fix: Dockerfile + borrow checker errors + SQLX_OFFLINE

- rust:1.81 → rust:1-bookworm
- cargo build --release -p mem-cli
- Fix partial move errors in versioning.rs (ref borrow)
- Set SQLX_OFFLINE=true (needs .sqlx/ cache or query macro conversion)
- Build + push on all CI events

NOTE: Still needs sqlx offline cache (.sqlx/) or convert query_as! to runtime

Dockerfile

@@ -1,15 +1,16 @@
 # Multi-stage build for Poimen Memory Service (Rust)
 
 # Stage 1: Builder
-FROM rust:1.81-bookworm as builder
+FROM rust:1-bookworm as builder
 
 WORKDIR /build
 
 # Copy source
 COPY . .
 
-# Build in release mode
-RUN cargo build --release
+# Build the mem binary (offline mode - no DATABASE_URL needed)
+ENV SQLX_OFFLINE=true
+RUN cargo build --release -p mem-cli
 
 # Stage 2: Runtime
 FROM debian:bookworm-slim