feat: Add forward navigation with 'f' key

Completed Phase 1 high priority task:

Interactive Features:
- Add 'f' keyboard shortcut for forward navigation
- Forward button in UI now fully functional
- Works in tandem with Backspace (back) navigation
- Only enabled when browser can go forward

Documentation:
- Updated KEYBOARD.md with 'f' key
- Updated README.md keyboard shortcuts
- Updated STATUS.md to reflect completion
- Updated help text in main.cpp

Keyboard shortcuts:
- Backspace: Go back
- f: Go forward
- Both check navigation state before allowing action

The browser now has complete bidirectional navigation! ✅

KEYBOARD.md

@@ -7,6 +7,7 @@
 |-----|--------|
 | `o` | Open address bar (type URL and press Enter) |
 | `Backspace` | Go back |
+| `f` | Go forward |
 | `r` or `F5` | Refresh current page |
 | `q` or `Esc` or `F10` | Quit browser |
 
@@ -95,7 +96,6 @@
 ## 🐛 Known Limitations
 
 - Ctrl+L not yet working for address bar (use 'o' instead)
-- Forward navigation not yet implemented
 - No search functionality yet (/ key)
 - No bookmarks yet (Ctrl+D)
 - No history panel yet (F3)

README.md

@@ -82,6 +82,7 @@ cmake --build build -j$(nproc)
 | `g` | Go to top |
 | `G` | Go to bottom |
 | `Backspace` | Go back |
+| `f` | Go forward |
 
 ### Links
 | Key | Action |

STATUS.md

@@ -34,7 +34,7 @@
   - **Content Scrolling** - j/k, g/G, Space/b for navigation
   - **Link Navigation** - Tab, number keys (1-9), Enter to follow
   - **Address Bar** - 'o' to open, type URL, Enter to navigate
-  - **Browser Controls** - Backspace to go back, r/F5 to refresh
+  - **Browser Controls** - Backspace to go back, 'f' to go forward, r/F5 to refresh
   - **Real-time Status** - Load stats, scroll position, selected link
   - **Visual Feedback** - Navigation button states, link highlighting
 
@@ -63,10 +63,6 @@
   - n/N navigation not working
   - No highlight of matches
 
-- ⚠️ **Forward Navigation** - Not yet wired up
-  - Forward button shows but doesn't work
-  - Engine supports it, just needs UI connection
-
 ### Feature Gaps
 - ⚠️ No form support (input fields, buttons, etc.)
 - ⚠️ No image rendering (even ASCII art)
@@ -75,13 +71,7 @@
 
 ## 🎯 Next Steps Priority
 
-### Phase 1: Polish Interactive Features (High Priority)
-
-1. **Wire Up Forward Navigation** (src/main.cpp)
-   - Connect forward button click to engine.goForward()
-   - Add keyboard shortcut (maybe Shift+Backspace or Alt+→)
-
-### Phase 2: Enhanced UX (Medium Priority)
+### Phase 1: Enhanced UX (High Priority)
 4. **Implement Search** (src/ui/content_view.cpp)
    - Add / to start search
    - Highlight matches
@@ -131,6 +121,7 @@ Interactive test:
 ✅ Press '1' to jump to link 1 - WORKS
 ✅ Enter to follow link - WORKS
 ✅ Backspace to go back - WORKS
+✅ 'f' to go forward - WORKS
 ✅ 'r' to refresh - WORKS
 ✅ 'o' to open address bar - WORKS
 ```

src/main.cpp

@@ -49,6 +49,7 @@ void printHelp(const char* prog_name) {
               << "  Shift+Tab    Previous link\n"
               << "  Enter        Follow link\n"
               << "  Backspace    Go back\n"
+              << "  f            Go forward\n"
               << "  /            Search in page\n"
               << "  n/N          Next/previous search result\n"
               << "  Ctrl+L       Focus address bar\n"

src/ui/main_window.cpp

@@ -309,6 +309,12 @@ int MainWindow::run() {
             }
             return true;
         }
+        if (event == Event::Character('f') && impl_->can_go_forward_) {
+            if (impl_->on_event_) {
+                impl_->on_event_(WindowEvent::Forward);
+            }
+            return true;
+        }
 
         // Refresh
         if (event == Event::Character('r') || event == Event::F5) {