chore: reorganize into polyglot monorepo (workshop)

- Move bigmind/ -> mcp/bigmind/
- Move webscraper/ -> mcp/webscraper/
- Move mss-failsafe/ -> java/mss-failsafe/
- Move Wellmann-Shop/ -> java/wellmann-shop/ (normalize to kebab-case)
- Add .roo/ IDE config files to tracking
- Add plans/REPO_STRATEGY.md (monorepo strategy document)
- Expand .gitignore: Java/Maven, Node/TS, coverage, uv.lock
- Rewrite README.md as navigation index
- Update .roo/mcp.json webscraper path to mcp/webscraper/

java/mss-failsafe/mssfailsafe.datalayer/pom.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>plate.software</groupId>
+        <artifactId>mss-failsafe</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>mssfailsafe.datalayer</artifactId>
+    <packaging>jar</packaging>
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+        <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <failOnMissingWebXml>false</failOnMissingWebXml>
+        <jakartaee>8.0</jakartaee>
+    </properties>
+    
+    <dependencies>
+        <dependency>
+            <groupId>plate.software</groupId>
+            <artifactId>userdata</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>javax</groupId>
+            <artifactId>javaee-api</artifactId>
+            <version>${jakartaee}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.pdfbox</groupId>
+            <artifactId>pdfbox</artifactId>
+            <version>2.0.13</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>2.14.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>2.14.1</version>
+        </dependency>
+        <dependency>
+            <groupId>plate.software</groupId>
+            <artifactId>userManagement</artifactId>
+            <version>1.0-SNAPSHOT</version>
+            <classifier>classes</classifier>
+        </dependency>
+    </dependencies>
+</project>