fix: update masonry grid sizing logic and notebook list padding

.gemini/commands/bmad-bmm-generate-project-context.toml

@@ -0,0 +1,14 @@
+description = """Creates a concise project-context.md file with critical rules and patterns that AI agents must follow when implementing code. Optimized for LLM context efficiency."""
+prompt = """
+Execute the BMAD 'generate-project-context' workflow.
+
+CRITICAL: You must load and follow the workflow definition exactly.
+
+WORKFLOW INSTRUCTIONS:
+1. LOAD the workflow file from {project-root}/_bmad/bmm/workflows/generate-project-context/workflow.md
+2. READ its entire contents
+3. FOLLOW every step precisely as specified
+4. DO NOT skip or modify any steps
+
+WORKFLOW FILE: {project-root}/_bmad/bmm/workflows/generate-project-context/workflow.md
+"""