Agent Skills: lc-java

File a LeetCode **Java** solution into this repo the way the existing ones are filed — put it in the package its pattern owns, write the file-level javadoc header (`<number>. <Title>` then difficulty then the statement), mark the solution blocks `// V0` / `// V0-1` / `// V1-1` so the markers match the method names, add the `time =` / `space =` javadoc, compile and run it, write every block as the standard, readable approach with explanatory comments and no clever syntactic sugar, file each other good approach as `// V1`, `// V2`, …, then add the `[Java]` link to the README row the problem already has. Use when asked to "add LC <number> in Java", to file a draft out of `ws/Workspace26.java`, to port an existing Python solution to Java, or to close part of the Java coverage gap. Triggers - "add LC 25 to LinkedList in java", "/lc-java 239 SlideWindow", "file my workspace draft", "port LC 207 to java".