Fix quarto render command syntax to use --to=format

- Updated CLI build commands to use proper --to=format syntax instead of --to format
- Fixed in build_full(), build_chapters(), and build_html_only() methods
- Updated BUILD.md documentation to reflect correct syntax
- Updated manage_captions.py error message with correct syntax

This ensures compatibility with quarto's expected command-line argument format.

cli/commands/build.py

@@ -62,7 +62,7 @@ class BuildCommand:
             raise ValueError(f"Unknown format type: {format_type}")
             
         render_to = render_targets[format_type]
-        render_cmd = ["quarto", "render", "--to", render_to]
+        render_cmd = ["quarto", "render", f"--to={render_to}"]
         
         # Show the command being executed
         cmd_str = " ".join(render_cmd)
@@ -147,7 +147,7 @@ class BuildCommand:
             # Build with project.render configuration
             console.print("[yellow]🔨 Building with fast build configuration...[/yellow]")
             
-            render_cmd = ["quarto", "render", "--to", format_arg]
+            render_cmd = ["quarto", "render", f"--to={format_arg}"]
             cmd_str = " ".join(render_cmd)
             console.print(f"[blue]💻 Command: {cmd_str}[/blue]")
             
@@ -282,7 +282,7 @@ class BuildCommand:
             self.config_manager.setup_symlink("html")
             
             # Build HTML
-            render_cmd = ["quarto", "render", "--to", "html"]
+            render_cmd = ["quarto", "render", "--to=html"]
             cmd_str = " ".join(render_cmd)
             console.print(f"[blue]💻 Command: {cmd_str}[/blue]")
             

docs/BUILD.md

@@ -332,7 +332,7 @@ quarto render --to html
 ```sh
 cd quarto
 ln -sf config/_quarto-pdf.yml _quarto.yml
-quarto render --to titlepage-pdf
+quarto render --to=titlepage-pdf
 ```
 
 #### EPUB version:

tools/scripts/content/manage_captions.py

@@ -321,7 +321,7 @@ class FigureCaptionImprover:
         print(f"\n💡 To fix:")
         print(f"   1. Uncomment these chapters in _quarto.yml, OR")
         print(f"   2. Exclude these directories from processing, OR") 
-        print(f"   3. Run 'quarto render --to titlepage-pdf' after uncommenting")
+        print(f"   3. Run 'quarto render --to=titlepage-pdf' after uncommenting")
         print(f"\n❌ HALTING EXECUTION - Please resolve these issues first.")
         
         return True  # Should halt