Feature/simple file server with node18 support

examples/demo-zk-books/pom.xml

@@ -47,7 +47,7 @@
         <timestamp>${maven.build.timestamp}</timestamp>
         <maven.build.timestamp.format>yyyyMMdd</maven.build.timestamp.format>
 
-        <tools.version>26.5.0</tools.version>
+        <tools.version>26.5.1</tools.version>
 
     </properties>
 

examples/demo-zk-books/src/main/java/mybookstore/repositories/BookRepository.java

@@ -3,9 +3,7 @@
 import mybookstore.domain.Book;
 import org.springframework.cache.annotation.Cacheable;
 import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.repository.PagingAndSortingRepository;
 import org.springframework.data.rest.core.annotation.RepositoryRestResource;
-import tools.dynamia.domain.jpa.JpaCrudServiceRepository;
 
 import java.util.Optional;
 

extensions/dashboard/sources/pom.xml

@@ -23,7 +23,7 @@
     <parent>
         <groupId>tools.dynamia.modules</groupId>
         <artifactId>tools.dynamia.modules.parent</artifactId>
-        <version>26.5.0</version>
+        <version>26.5.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
@@ -38,12 +38,12 @@
         <dependency>
             <groupId>tools.dynamia</groupId>
             <artifactId>tools.dynamia.zk</artifactId>
-            <version>26.5.0</version>
+            <version>26.5.1</version>
         </dependency>
         <dependency>
             <groupId>tools.dynamia.modules</groupId>
             <artifactId>tools.dynamia.modules.saas.api</artifactId>
-            <version>26.5.0</version>
+            <version>26.5.1</version>
         </dependency>
     </dependencies>
 

extensions/email-sms/sources/core/pom.xml

@@ -23,7 +23,7 @@
     <parent>
         <artifactId>tools.dynamia.modules.email.parent</artifactId>
         <groupId>tools.dynamia.modules</groupId>
-        <version>26.5.0</version>
+        <version>26.5.1</version>
     </parent>
 
     <artifactId>tools.dynamia.modules.email</artifactId>
@@ -50,12 +50,12 @@
         <dependency>
             <groupId>tools.dynamia</groupId>
             <artifactId>tools.dynamia.domain.jpa</artifactId>
-            <version>26.5.0</version>
+            <version>26.5.1</version>
         </dependency>
         <dependency>
             <groupId>tools.dynamia</groupId>
             <artifactId>tools.dynamia.templates</artifactId>
-            <version>26.5.0</version>
+            <version>26.5.1</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>

extensions/email-sms/sources/pom.xml

@@ -23,7 +23,7 @@
     <parent>
         <groupId>tools.dynamia.modules</groupId>
         <artifactId>tools.dynamia.modules.parent</artifactId>
-        <version>26.5.0</version>
+        <version>26.5.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
@@ -85,7 +85,7 @@
         <dependency>
             <groupId>tools.dynamia.modules</groupId>
             <artifactId>tools.dynamia.modules.saas.jpa</artifactId>
-            <version>26.5.0</version>
+            <version>26.5.1</version>
         </dependency>
 
 

extensions/email-sms/sources/ui/pom.xml

@@ -22,7 +22,7 @@
 	<parent>
 		<artifactId>tools.dynamia.modules.email.parent</artifactId>
 		<groupId>tools.dynamia.modules</groupId>
-		<version>26.5.0</version>
+		<version>26.5.1</version>
 	</parent>
 
 	<name>DynamiaModules - Email UI</name>
@@ -34,12 +34,12 @@
 		<dependency>
 			<groupId>tools.dynamia</groupId>
 			<artifactId>tools.dynamia.zk</artifactId>
-			<version>26.5.0</version>
+			<version>26.5.1</version>
 		</dependency>
 		<dependency>
 			<groupId>tools.dynamia.modules</groupId>
 			<artifactId>tools.dynamia.modules.email</artifactId>
-			<version>26.5.0</version>
+			<version>26.5.1</version>
 		</dependency>
 		<dependency>
 			<groupId>tools.dynamia.zk.addons</groupId>

extensions/entity-files/packages/files-sdk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@dynamia-tools/files-sdk",
-  "version": "26.5.0",
+  "version": "26.5.1",
   "website": "https://dynamia.tools",
   "description": "TypeScript/JavaScript client SDK for the Dynamia Entity Files extension REST API",
   "keywords": [

extensions/entity-files/packages/simple-file-server/README.md

@@ -246,9 +246,117 @@ Each bucket also contains an internal `.sfs/` directory:
 - **Path traversal protection**: canonical path validation on every request
 - **No public access**: no anonymous or public bucket support
 
+## Requirements
+
+| Requirement | Minimum version |
+|---|---|
+| Node.js | **18.17.0** |
+| npm | 9+ (or pnpm 8+) |
+
+> **Why 18.17.0?** The `sharp` native image-processing library requires exactly `^18.17.0` as the lowest Node 18 patch that ships a compatible binary. All other dependencies support Node ≥ 18.
+
+## Embedded Usage
+
+You can start SFS programmatically inside your own Node.js application — no CLI needed.
+
+### Installation
+
+```bash
+npm install @dynamia-tools/simple-file-server
+```
+
+### Minimal example
+
+```js
+// index.js  (type: "module")
+import { startServer } from '@dynamia-tools/simple-file-server'
+
+// Reads configuration from the .sfs/ directory in process.cwd().
+// Provision buckets and identities first with the CLI, or do it
+// programmatically (see "Full programmatic setup" below).
+startServer({
+  host: process.env.SFS_HOST ?? '0.0.0.0',
+  port: parseInt(process.env.SFS_PORT ?? '8080', 10),
+}).catch((err) => {
+  console.error('Fatal error during startup:', err)
+  process.exit(1)
+})
+```
+
+### Full programmatic setup
+
+Use `createRuntime` to bootstrap services and configure buckets/identities entirely in code:
+
+```js
+import path from 'node:path'
+import { createRuntime, createServer } from '@dynamia-tools/simple-file-server'
+
+const runtime = await createRuntime({
+  dataDir:  path.join(process.cwd(), '.sfs'),
+  host:     '0.0.0.0',
+  port:     8080,
+  logLevel: 'info',
+})
+
+const { config, bucketService, storageService, thumbnailService,
+        identityService, operationalLogger } = runtime
+
+// Create a bucket (idempotent pattern)
+if (!await bucketService.find('documents')) {
+  await bucketService.create('documents', '/mnt/storage/documents')
+}
+
+// Create an identity (idempotent pattern)
+if (!await identityService.find('app-user')) {
+  await identityService.create('app-user', process.env.APP_SECRET ?? 'changeme')
+}
+
+// Grant permissions
+await identityService.grant('app-user', {
+  bucket:      'documents',
+  prefixes:    ['/'],                          // entire bucket
+  permissions: ['read', 'write', 'delete'],
+})
+
+// Validate buckets and start the server
+await bucketService.validateStartup()
+
+const server = await createServer({
+  config, bucketService, storageService,
+  thumbnailService, identityService, operationalLogger,
+})
+
+process.on('SIGTERM', async () => { await server.close(); process.exit(0) })
+process.on('SIGINT',  async () => { await server.close(); process.exit(0) })
+
+await server.listen({ host: config.host, port: config.port })
+```
+
+### Available exports
+
+| Export | Description |
+|---|---|
+| `startServer(overrides?)` | One-call bootstrap: creates runtime + server + starts listening |
+| `createRuntime(overrides?)` | Initialises services and data dirs, returns the `SFSRuntime` object |
+| `createServer(runtime)` | Builds and returns the Fastify instance (does not call `.listen`) |
+| `BucketService` | Manage bucket definitions |
+| `IdentityService` | Manage identities and grants |
+| `StorageService` | Low-level file upload / download / list |
+| `ThumbnailService` | On-the-fly image thumbnails via Sharp |
+| `OperationalLogger` | Structured JSONL access + error logs |
+
+### Environment variables
+
+| Variable | Default | Description |
+|---|---|---|
+| `SFS_DATA_DIR` | `<cwd>/.sfs` | Where SFS stores config, identities and buckets |
+| `SFS_HOST` | `0.0.0.0` | Bind host |
+| `SFS_PORT` | `8080` | Bind port |
+| `SFS_LOG_LEVEL` | `info` | Pino log level (`trace` `debug` `info` `warn` `error`) |
+
 ## Technology Stack
 
-- **Node.js 22+** with TypeScript (strict mode)
+- **Node.js 18.17+** with TypeScript (strict mode)
 - **Fastify** for high-throughput HTTP
 - **Pino** for structured JSON logging
 - **Sharp** for efficient thumbnail generation

extensions/entity-files/packages/simple-file-server/examples/embedded/index.js

@@ -0,0 +1,26 @@
+/**
+ * simple-file-server — Embedded Mode Example
+ *
+ * Starts the server using the configuration already present in the
+ * current working directory (.sfs/ folder).  No extra setup is done
+ * here — use the CLI (`sfs create bucket …`, `sfs create identity …`)
+ * to provision buckets and identities beforehand.
+ *
+ * Configuration via environment variables (all optional):
+ *   SFS_HOST       – bind host  (default: 0.0.0.0)
+ *   SFS_PORT       – bind port  (default: 8500)
+ *   SFS_LOG_LEVEL  – log level  (default: info)
+ *
+ * Usage:
+ *   npm install
+ *   npm start
+ */
+import { startServer } from '@dynamia-tools/simple-file-server'
+
+const PORT = parseInt(process.env.SFS_PORT ?? '8500', 10)
+const HOST = process.env.SFS_HOST ?? '0.0.0.0'
+
+startServer({ port: PORT, host: HOST }).catch((err) => {
+  console.error('Fatal error during startup:', err)
+  process.exit(1)
+})

extensions/entity-files/packages/simple-file-server/examples/embedded/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "sfs-embedded-example",
+  "version": "1.0.0",
+  "description": "Example: using simple-file-server in embedded mode (programmatic API)",
+  "type": "module",
+  "scripts": {
+    "start": "node index.js",
+    "start:debug": "node --inspect index.js"
+  },
+  "dependencies": {
+    "@dynamia-tools/simple-file-server": "^26.5.0"
+  },
+  "engines": {
+    "node": ">=18.17.0"
+  }
+}
+

extensions/entity-files/packages/simple-file-server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@dynamia-tools/simple-file-server",
-  "version": "26.5.0",
+  "version": "26.5.1",
   "description": "Standalone filesystem-native file server with a minimal S3-style API for secure server-to-server file operations",
   "keywords": [
     "dynamia",
@@ -57,7 +57,7 @@
     "commander": "^13.1.0",
     "fastify": "^5.3.0",
     "fastify-plugin": "^5.1.0",
-    "file-type": "^21.0.0",
+    "file-type": "^20.0.0",
     "pino": "^9.7.0",
     "pino-pretty": "^13.0.0",
     "sharp": "^0.34.1",
@@ -71,6 +71,6 @@
     "vitest": "^3.0.0"
   },
   "engines": {
-    "node": ">=22.0.0"
+    "node": ">=18.17.0"
   }
 }