Add SPA session validation and buglist, update migration docs

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/RSpade/Integrations/Jqhtml/JqhtmlWebpackCompiler.php

@@ -102,14 +102,19 @@ class JqhtmlWebpackCompiler
         // Compile via RPC server
         $compiled_js = static::_compile_via_rpc($file_path);
 
-        // Don't add any comments - they break sourcemap line offsets
-        // Just use the compiler output as-is
+        // Extract template variable name and append registration call
+        // CRITICAL: Do NOT add extra newlines - they break sourcemap line offsets
+        // The registration is appended AFTER the sourcemap comment so it doesn't affect mappings
+        if (preg_match('/var\s+(template_\w+)\s*=/', $compiled_js, $matches)) {
+            $template_var = $matches[1];
+            // Append registration on same line as end of sourcemap (no extra newlines)
+            $compiled_js = rtrim($compiled_js) . "\njqhtml.register_template({$template_var});";
+        }
+
         $wrapped_js = $compiled_js;
 
-        // Ensure proper newline at end
-        if (!str_ends_with($wrapped_js, "\n")) {
-            $wrapped_js .= "\n";
-        }
+        // Ensure exactly one newline at end (no extra)
+        $wrapped_js = rtrim($wrapped_js) . "\n";
 
         // Cache the compiled result
         file_put_contents($cache_file, $wrapped_js);