fix: Show actual character count in debug logging

Changed component size reporting from kilobytes (size/1024) to
actual character count. This is more accurate and useful for
developers debugging component registration.

Before: "~1.5 chars" (actually KB)
After: "342 chars" (actual character count)

Updated tests to match the new format.

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

Co-Authored-By: Claude <[email protected]>

Author: justin808

packages/react-on-rails/src/base/client.ts

@@ -205,7 +205,7 @@ Fix: Use only react-on-rails OR react-on-rails-pro, not both.`);
           componentNames.forEach((name) => {
             const component = components[name];
             const size = component.toString().length;
-            console.log(`[ReactOnRails] ✅ Registered: ${name} (~${(size / 1024).toFixed(1)} chars)`);
+            console.log(`[ReactOnRails] ✅ Registered: ${name} (${size} chars)`);
           });
         }
       } else {

packages/react-on-rails/tests/debugLogging.test.js

@@ -101,7 +101,7 @@ describe('Debug Logging', () => {
         expect.stringMatching(/\[ReactOnRails\] Component registration completed in \d+\.\d+ms/),
       );
       expect(consoleLogSpy).toHaveBeenCalledWith(
-        expect.stringMatching(/\[ReactOnRails\] ✅ Registered: TestComponent \(~\d+\.\d+ chars\)/),
+        expect.stringMatching(/\[ReactOnRails\] ✅ Registered: TestComponent \(\d+ chars\)/),
       );
     });
 
@@ -120,10 +120,10 @@ describe('Debug Logging', () => {
 
       // Check that individual component registrations are logged with size info
       expect(consoleLogSpy).toHaveBeenCalledWith(
-        expect.stringMatching(/\[ReactOnRails\] ✅ Registered: SmallComponent \(~\d+\.\d+ chars\)/),
+        expect.stringMatching(/\[ReactOnRails\] ✅ Registered: SmallComponent \(\d+ chars\)/),
       );
       expect(consoleLogSpy).toHaveBeenCalledWith(
-        expect.stringMatching(/\[ReactOnRails\] ✅ Registered: LargerComponent \(~\d+\.\d+ chars\)/),
+        expect.stringMatching(/\[ReactOnRails\] ✅ Registered: LargerComponent \(\d+ chars\)/),
       );
     });
 
@@ -144,7 +144,7 @@ describe('Debug Logging', () => {
         expect.stringMatching(/\[ReactOnRails\] Component registration completed in \d+\.\d+ms/),
       );
       expect(consoleLogSpy).toHaveBeenCalledWith(
-        expect.stringMatching(/\[ReactOnRails\] ✅ Registered: TestComponent \(~\d+\.\d+ chars\)/),
+        expect.stringMatching(/\[ReactOnRails\] ✅ Registered: TestComponent \(\d+ chars\)/),
       );
     });
   });