Add missing repository components for complete supercharge.sh installation

Added all directories and files expected by supercharge.sh:

- hooks/ (5 hook scripts for session management and AI consultation)
- commands/ (3 custom slash commands: brainstorm, write-plan, execute-plan)
- plugins/ (plugin references for glm-plan, rust-analyzer, marketplaces)
- bin/ralphloop (Ralph Orchestrator wrapper for autonomous iteration)
- scripts/sync-agents.sh (agent synchronization script)
- templates/ (config templates: settings, hooks, config.json)

This completes the repository structure so supercharge.sh can install
all components without warnings.

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

plugins/rust-analyzer-lsp/plugin.json

@@ -0,0 +1,9 @@
+{
+  "name": "rust-analyzer-lsp",
+  "version": "1.0.0",
+  "description": "Rust language support via LSP",
+  "type": "lsp",
+  "language": "rust",
+  "capabilities": ["definition", "references", "hover", "completion"],
+  "install": "rust-analyzer"
+}