revert: remove codebase intelligence system

Rolled back the intel system due to overengineering concerns:
- 1200+ line hook with SQLite graph database
- 21MB sql.js dependency
- Entity generation spawning additional Claude calls
- Complex system with unclear value

Removed:
- /gsd:analyze-codebase command
- /gsd:query-intel command
- gsd-intel-index.js, gsd-intel-session.js, gsd-intel-prune.js hooks
- gsd-entity-generator, gsd-indexer agents
- entity.md template
- sql.js dependency

Preserved:
- Model profiles feature
- Statusline hook
- All other v1.9.x improvements

-3,065 lines removed

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

bin/install.js

@@ -418,72 +418,6 @@ function install(isGlobal) {
     console.log(`  ${green}✓${reset} Configured update check hook`);
   }
 
-  // Register intel hooks for codebase intelligence
-  const intelIndexCommand = isGlobal
-    ? 'node "$HOME/.claude/hooks/gsd-intel-index.js"'
-    : 'node .claude/hooks/gsd-intel-index.js';
-
-  const intelSessionCommand = isGlobal
-    ? 'node "$HOME/.claude/hooks/gsd-intel-session.js"'
-    : 'node .claude/hooks/gsd-intel-session.js';
-
-  // PostToolUse hook for indexing
-  if (!settings.hooks.PostToolUse) {
-    settings.hooks.PostToolUse = [];
-  }
-
-  const hasIntelIndexHook = settings.hooks.PostToolUse.some(entry =>
-    entry.hooks && entry.hooks.some(h => h.command && h.command.includes('gsd-intel-index'))
-  );
-
-  if (!hasIntelIndexHook) {
-    settings.hooks.PostToolUse.push({
-      hooks: [{
-        type: 'command',
-        command: intelIndexCommand
-      }]
-    });
-    console.log(`  ${green}✓${reset} Configured intel indexing hook`);
-  }
-
-  // SessionStart hook for context injection
-  const hasIntelSessionHook = settings.hooks.SessionStart.some(entry =>
-    entry.hooks && entry.hooks.some(h => h.command && h.command.includes('gsd-intel-session'))
-  );
-
-  if (!hasIntelSessionHook) {
-    settings.hooks.SessionStart.push({
-      hooks: [{
-        type: 'command',
-        command: intelSessionCommand
-      }]
-    });
-    console.log(`  ${green}✓${reset} Configured intel session hook`);
-  }
-
-  // Stop hook for pruning deleted files
-  const intelPruneCommand = isGlobal
-    ? 'node "$HOME/.claude/hooks/gsd-intel-prune.js"'
-    : 'node .claude/hooks/gsd-intel-prune.js';
-
-  if (!settings.hooks.Stop) {
-    settings.hooks.Stop = [];
-  }
-
-  const hasIntelPruneHook = settings.hooks.Stop.some(entry =>
-    entry.hooks && entry.hooks.some(h => h.command && h.command.includes('gsd-intel-prune'))
-  );
-
-  if (!hasIntelPruneHook) {
-    settings.hooks.Stop.push({
-      hooks: [{
-        type: 'command',
-        command: intelPruneCommand
-      }]
-    });
-    console.log(`  ${green}✓${reset} Configured intel prune hook`);
-  }
-
   return { settingsPath, settings, statuslineCommand };
 }