feat: replace framed input with horizontal rules in CLI

- Updated the input area layout by replacing the styled border frame with horizontal rules above and below the input, enhancing visual clarity.
- Adjusted the layout to ensure the input area grows dynamically with content while maintaining a consistent appearance with inline completions.
- Modified style definitions to reflect the new horizontal rule design, improving the overall aesthetics of the CLI.

cli.py

@@ -35,7 +35,7 @@ from prompt_toolkit.application import Application
 from prompt_toolkit.layout import Layout, HSplit, Window, FormattedTextControl
 from prompt_toolkit.layout.dimension import Dimension
 from prompt_toolkit.layout.menus import CompletionsMenu
-from prompt_toolkit.widgets import TextArea, Frame
+from prompt_toolkit.widgets import TextArea
 from prompt_toolkit.key_binding import KeyBindings
 from prompt_toolkit.completion import Completer, Completion
 from prompt_toolkit.keys import Keys
@@ -1704,10 +1704,18 @@ class HermesCLI:
             height=get_hint_height,
         )
         
-        # Wrap the input in a styled border frame that grows with content
-        framed_input = Frame(input_area, style='class:input-frame')
+        # Horizontal rules above and below the input (bronze, 1 line each).
+        # The bottom rule moves down as the TextArea grows with newlines.
+        input_rule_top = Window(
+            content=FormattedTextControl([('class:input-rule', '─' * 200)]),
+            height=1,
+        )
+        input_rule_bot = Window(
+            content=FormattedTextControl([('class:input-rule', '─' * 200)]),
+            height=1,
+        )
 
-        # Layout: spacer + framed input at bottom, completions below.
+        # Layout: spacer + ruled input at bottom, completions below.
         # Using inline CompletionsMenu (not a Float) so it reliably appears even
         # after agent output has filled the terminal via patch_stdout.  Float-based
         # menus lose their rendering space in non-full-screen mode once scrollback
@@ -1716,7 +1724,9 @@ class HermesCLI:
             HSplit([
                 Window(height=0),
                 spacer,
-                framed_input,
+                input_rule_top,
+                input_area,
+                input_rule_bot,
                 CompletionsMenu(max_height=12, scroll_offset=1),
             ])
         )
@@ -1727,9 +1737,8 @@ class HermesCLI:
             'prompt': '#FFF8DC',
             'prompt-working': '#888888 italic',
             'hint': '#555555 italic',
-            # Bronze frame around the input area
-            'input-frame':        '#CD7F32',
-            'input-frame.border': '#CD7F32',
+            # Bronze horizontal rules around the input area
+            'input-rule': '#CD7F32',
             'completion-menu': 'bg:#1a1a2e #FFF8DC',
             'completion-menu.completion': 'bg:#1a1a2e #FFF8DC',
             'completion-menu.completion.current': 'bg:#333355 #FFD700',