Implement comprehensive professional logging system

Added complete logging infrastructure for AI-only development debugging:

**Core Logging Features:**
- Command-line debug flags: -d (console) and -d filename (file output)
- Custom log format: "message - severity - timestamp"
- Professional Python logging with hierarchical loggers (bifrost.module)
- Clean separation: debug mode vs production (warnings/errors only)

**Comprehensive Coverage - Replaced 55+ Print Statements:**
- timeline_view.py: Timeline operations, new content detection, sound events
- main_window.py: Auto-refresh system, streaming mode, UI events
- activitypub/client.py: API calls, streaming connections, server detection
- audio/sound_manager.py: Sound playback, pack loading, volume control
- error_manager.py: Centralized error handling with proper log levels
- All remaining modules: Complete print statement elimination

**Enhanced Auto-Refresh Debugging:**
- Fixed repetitive refresh interval logging (only logs on changes)
- Added detailed auto-refresh execution tracing with timing
- New content detection logging with post ID tracking
- Sound event logging showing which sounds play and why

**Sound System Visibility:**
- Complete audio event logging with file paths and volumes
- Sound pack loading and fallback detection
- Audio playback success/failure with detailed error context

**Documentation Updates:**
- README.md: Complete debug system documentation for users
- CLAUDE.md: Professional logging guidelines for AI development
- Comprehensive usage examples and troubleshooting guides

This logging system provides essential debugging capabilities for
the AI-only development constraint, enabling systematic issue
resolution without human code intervention.

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

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

src/widgets/post_details_dialog.py

@@ -10,6 +10,7 @@ from PySide6.QtWidgets import (
 from PySide6.QtCore import Qt, Signal, QThread
 from PySide6.QtGui import QFont
 from typing import List, Dict, Any, Optional
+import logging
 
 from activitypub.client import ActivityPubClient
 from models.user import User
@@ -26,6 +27,7 @@ class FetchDetailsThread(QThread):
         super().__init__()
         self.client = client
         self.post_id = post_id
+        self.logger = logging.getLogger('bifrost.post_details')
         
     def run(self):
         """Fetch favorites and boosts in background"""
@@ -40,14 +42,14 @@ class FetchDetailsThread(QThread):
                 favourited_by_data = self.client.get_status_favourited_by(self.post_id)
                 details['favourited_by'] = favourited_by_data
             except Exception as e:
-                print(f"Failed to fetch favorites: {e}")
+                self.logger.error(f"Failed to fetch favorites: {e}")
                 
             # Fetch who boosted this post  
             try:
                 reblogged_by_data = self.client.get_status_reblogged_by(self.post_id)
                 details['reblogged_by'] = reblogged_by_data
             except Exception as e:
-                print(f"Failed to fetch boosts: {e}")
+                self.logger.error(f"Failed to fetch boosts: {e}")
                 
             self.details_loaded.emit(details)
             
@@ -63,6 +65,7 @@ class PostDetailsDialog(QDialog):
         self.post = post
         self.client = client
         self.sound_manager = sound_manager
+        self.logger = logging.getLogger('bifrost.post_details')
         
         self.setWindowTitle("Post Details")
         self.setModal(True)
@@ -170,7 +173,7 @@ class PostDetailsDialog(QDialog):
                     item.setData(Qt.UserRole, user)
                     self.favorites_list.addItem(item)
                 except Exception as e:
-                    print(f"Error parsing favorite user: {e}")
+                    self.logger.error(f"Error parsing favorite user: {e}")
         else:
             item = QListWidgetItem("No one has favorited this post yet")
             self.favorites_list.addItem(item)
@@ -188,7 +191,7 @@ class PostDetailsDialog(QDialog):
                     item.setData(Qt.UserRole, user)
                     self.boosts_list.addItem(item)
                 except Exception as e:
-                    print(f"Error parsing boost user: {e}")
+                    self.logger.error(f"Error parsing boost user: {e}")
         else:
             item = QListWidgetItem("No one has boosted this post yet")
             self.boosts_list.addItem(item)