fix(docker): Update to Rust 1.93 to support Edition 2024

backend/DOCKER-COMMANDS.md

@@ -0,0 +1,52 @@
+# Quick Fix Commands
+
+## The Problem
+Docker is using cached layers from the old Dockerfile. Even though we updated the file,
+Docker's build cache still has the old `FROM rust:latest` with `apk` commands.
+
+## Solution Options
+
+### Option 1: Rebuild without cache (RECOMMENDED)
+```bash
+cd /home/asoliver/desarrollo/normogen/backend
+docker compose -f docker-compose.dev.yml build --no-cache
+docker compose -f docker-compose.dev.yml up -d
+```
+
+### Option 2: Clear all Docker build cache first
+```bash
+# Clear Docker's build cache
+docker builder prune -af
+
+# Then rebuild
+cd /home/asoliver/desarrollo/normogen/backend
+docker compose -f docker-compose.dev.yml up -d --build
+```
+
+### Option 3: Use the provided script
+```bash
+cd /home/asoliver/desarrollo/normogen/backend
+chmod +x fix-docker-build.sh
+./fix-docker-build.sh
+```
+
+## Why This Happened
+- Docker caches build layers to speed up subsequent builds
+- When we changed `FROM rust:latest` to `FROM rust:1.93-slim`, Docker should have invalidated the cache
+- But sometimes Docker's cache gets confused, especially with `latest` tags
+- The `--no-cache` flag forces Docker to ignore all cached layers
+
+## What Changed in the Dockerfile
+```dockerfile
+# OLD (cached):
+FROM rust:latest
+RUN apk add --no-cache musl-dev pkgconf openssl-dev...
+
+# NEW (current):
+FROM rust:1.93-slim
+RUN apt-get update && apt-get install -y pkg-config libssl-dev...
+```
+
+The new image uses:
+- `rust:1.93-slim` (supports Edition 2024)
+- `apt-get` (Debian/Ubuntu package manager) instead of `apk` (Alpine)