fix(lsp): qualify Kotlin LSP caller/callee QNs with module_qn

The Kotlin LSP initialized package_qn to "" for files without a source
`package` declaration, so it emitted bare resolved-call QNs (caller_qn
"caller", callee_qn "helper"). The pipeline join keys on an exact
caller_qn == enclosing_func_qn match, but the textual extractor qualifies
the enclosing function with the FS-path module_qn ("<project>.main.caller").
Bare != qualified, so every Kotlin LSP resolution was dropped and no
strategy-tagged CALLS edge survived.

Initialize package_qn to module_qn (the same FS-path prefix the textual
extractor uses); a source `package_header`, when present, still overrides
it for cross-file import resolution. Recovers the Kotlin top_level/method/
static/this/super/... LSP strategy reproductions (kt suite 11->15).

Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>

Author: DeusData

internal/cbm/lsp/kotlin_lsp.c

@@ -4076,11 +4076,14 @@ void cbm_run_kotlin_lsp(CBMArena *arena, CBMFileResult *result, const char *sour
         project_name = module_qn;
     }
 
-    /* Initial package_qn is empty — overridden by kotlin_lsp_process_file
-     * when it sees the `package_header` AST node. */
+    /* Initial package_qn is the FS-path module_qn ("<project>.<rel.path>"),
+     * matching the textual extractor's QN prefix so the LSP's caller_qn equals
+     * the call site's enclosing_func_qn (the join keys on an exact caller_qn
+     * match). A source `package_header`, when present, overrides this in
+     * kotlin_lsp_process_file for cross-file import resolution. */
     KotlinLSPContext ctx;
-    kotlin_lsp_init(&ctx, arena, use_source, use_source_len, &registry, "", module_qn, project_name,
-                    /*rel_path=*/NULL, &result->resolved_calls);
+    kotlin_lsp_init(&ctx, arena, use_source, use_source_len, &registry, module_qn, module_qn,
+                    project_name, /*rel_path=*/NULL, &result->resolved_calls);
 
     kotlin_lsp_process_file(&ctx, use_root);