Remove temporary documentation and planning files

Deleted Category 1 temporary documentation files:
- Root directory: review reports, fix summaries, implementation checklists
- docs/development: testing plans, review checklists, quick references
- instructor/guides: analysis reports and implementation plans
- tests: testing strategy document

These were completed work logs and planning documents no longer needed.
All active documentation (site content, module ABOUT files, READMEs) preserved.

scripts/cleanup_repo_history.sh

@@ -0,0 +1,119 @@
+#!/bin/bash
+# Repository History Cleanup Script
+# Removes large files from Git history using BFG Repo-Cleaner
+#
+# WARNING: This rewrites Git history. Make sure you have a backup!
+
+set -e  # Exit on error
+
+REPO_DIR="/Users/VJ/GitHub/TinyTorch"
+BACKUP_DIR="${REPO_DIR}_backup_$(date +%Y%m%d_%H%M%S)"
+CLEAN_REPO_DIR="${REPO_DIR}_clean"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+echo -e "${YELLOW}=== TinyTorch Repository History Cleanup ===${NC}\n"
+
+# Check if BFG is installed
+if ! command -v bfg &> /dev/null; then
+    echo -e "${RED}ERROR: BFG Repo-Cleaner is not installed.${NC}"
+    echo "Install with: brew install bfg"
+    echo "Or download from: https://rtyley.github.io/bfg-repo-cleaner/"
+    exit 1
+fi
+
+# Check if we're in the right directory
+if [ ! -d "$REPO_DIR/.git" ]; then
+    echo -e "${RED}ERROR: Not a Git repository: $REPO_DIR${NC}"
+    exit 1
+fi
+
+# Safety check: warn about uncommitted changes
+if [ -n "$(git -C "$REPO_DIR" status --porcelain)" ]; then
+    echo -e "${YELLOW}WARNING: You have uncommitted changes!${NC}"
+    echo "Please commit or stash them before proceeding."
+    read -p "Continue anyway? (y/N): " -n 1 -r
+    echo
+    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+        exit 1
+    fi
+fi
+
+# Create backup
+echo -e "${GREEN}Step 1: Creating backup...${NC}"
+git -C "$REPO_DIR" clone --mirror "$REPO_DIR" "$BACKUP_DIR"
+echo -e "${GREEN}✓ Backup created: $BACKUP_DIR${NC}\n"
+
+# Create mirror clone for BFG
+echo -e "${GREEN}Step 2: Creating mirror clone for BFG...${NC}"
+rm -rf "$CLEAN_REPO_DIR"
+git clone --mirror "$REPO_DIR" "$CLEAN_REPO_DIR"
+echo -e "${GREEN}✓ Mirror clone created${NC}\n"
+
+# Change to clean repo directory
+cd "$CLEAN_REPO_DIR"
+
+# Remove large files/folders
+echo -e "${GREEN}Step 3: Removing large files from history...${NC}"
+
+# Remove CIFAR-10 dataset files
+echo "  - Removing CIFAR-10 dataset files..."
+bfg --delete-folders cifar-10-batches-py 2>&1 | grep -v "^Using.*repo" || true
+
+# Remove virtual environment directories
+echo "  - Removing virtual environment directories..."
+bfg --delete-folders bin 2>&1 | grep -v "^Using.*repo" || true
+bfg --delete-folders lib 2>&1 | grep -v "^Using.*repo" || true
+bfg --delete-folders include 2>&1 | grep -v "^Using.*repo" || true
+bfg --delete-folders share 2>&1 | grep -v "^Using.*repo" || true
+
+# Remove large GIF files (optional - comment out if you want to keep them)
+echo "  - Removing large GIF files..."
+bfg --delete-files "*.gif" --no-blob-protection 2>&1 | grep -v "^Using.*repo" || true
+
+# Remove large PNG files (optional - comment out if you want to keep them)
+echo "  - Removing large PNG files..."
+bfg --delete-files "Gemini_Generated_Image_*.png" --no-blob-protection 2>&1 | grep -v "^Using.*repo" || true
+
+# Remove pyvenv.cfg
+echo "  - Removing pyvenv.cfg..."
+bfg --delete-files pyvenv.cfg 2>&1 | grep -v "^Using.*repo" || true
+
+echo -e "${GREEN}✓ Files removed${NC}\n"
+
+# Clean up Git
+echo -e "${GREEN}Step 4: Cleaning up Git repository...${NC}"
+git reflog expire --expire=now --all
+git gc --prune=now --aggressive
+echo -e "${GREEN}✓ Cleanup complete${NC}\n"
+
+# Show results
+echo -e "${GREEN}Step 5: Results${NC}"
+CLEAN_SIZE=$(du -sh . | cut -f1)
+echo "  Clean repository size: $CLEAN_SIZE"
+
+echo -e "\n${YELLOW}=== Next Steps ===${NC}"
+echo "1. Review the cleaned repository:"
+echo "   cd $CLEAN_REPO_DIR"
+echo "   git log --oneline -10"
+echo ""
+echo "2. If satisfied, replace original .git:"
+echo "   cd $REPO_DIR"
+echo "   mv .git .git.backup"
+echo "   cp -r $CLEAN_REPO_DIR $REPO_DIR/.git"
+echo ""
+echo "3. Verify:"
+echo "   cd $REPO_DIR"
+echo "   git status"
+echo ""
+echo "4. Force push to GitHub (WARNING: rewrites history):"
+echo "   git push origin --force --all"
+echo "   git push origin --force --tags"
+echo ""
+echo -e "${YELLOW}Backup location: $BACKUP_DIR${NC}"
+echo -e "${YELLOW}Clean repo location: $CLEAN_REPO_DIR${NC}"
+