Chore: add git best-practice standards

.editorconfig

@@ -0,0 +1,33 @@
+# EditorConfig — consistent formatting across editors and contributors
+# https://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.{html,css}]
+indent_size = 2
+
+[*.js]
+indent_size = 2
+
+[*.{json,yml,yaml}]
+indent_size = 2
+
+[*.py]
+indent_size = 4
+
+[*.{r,R}]
+indent_size = 2
+
+[Makefile]
+indent_style = tab

.gitattributes

@@ -0,0 +1,51 @@
+# Auto-detect text files and normalise line endings to LF
+* text=auto eol=lf
+
+# Explicitly declare text files
+*.html text eol=lf
+*.css  text eol=lf
+*.js   text eol=lf
+*.ts   text eol=lf
+*.json text eol=lf
+*.md   text eol=lf
+*.yml  text eol=lf
+*.yaml text eol=lf
+*.toml text eol=lf
+*.xml  text eol=lf
+*.svg  text eol=lf
+*.txt  text eol=lf
+*.sh   text eol=lf
+*.py   text eol=lf
+*.r    text eol=lf
+*.R    text eol=lf
+
+# Windows-specific files keep CRLF
+*.bat  text eol=crlf
+*.cmd  text eol=crlf
+*.ps1  text eol=crlf
+
+# Binary files — no diff, no merge, no line-ending conversion
+*.png  binary
+*.jpg  binary
+*.jpeg binary
+*.gif  binary
+*.ico  binary
+*.webp binary
+*.avif binary
+*.woff binary
+*.woff2 binary
+*.ttf  binary
+*.eot  binary
+*.otf  binary
+*.pdf  binary
+*.zip  binary
+*.gz   binary
+*.tar  binary
+*.mp4  binary
+*.webm binary
+*.mp3  binary
+*.ogg  binary
+
+# Lock files — exact merge to prevent conflicts
+package-lock.json merge=ours
+yarn.lock merge=ours

.githooks/commit-msg

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+# Commit message hook: enforce prefix convention from CONTRIBUTING.md
+set -euo pipefail
+
+MSG_FILE="$1"
+MSG=$(head -1 "$MSG_FILE")
+
+RED='\033[0;31m'
+NC='\033[0m'
+
+# Skip merge commits and fixup/squash commits
+if echo "$MSG" | grep -qE '^(Merge|Revert|fixup!|squash!)'; then
+  exit 0
+fi
+
+# Allowed prefixes (from CONTRIBUTING.md)
+PREFIXES="Add|Fix|Update|Translate|Docs|Refactor|Test|CI|Chore|Merge"
+
+if ! echo "$MSG" | grep -qE "^(${PREFIXES}):"; then
+  echo -e "${RED}Invalid commit message format.${NC}"
+  echo ""
+  echo "Commit message must start with one of these prefixes:"
+  echo "  Add:       — New feature, course, or tool"
+  echo "  Fix:       — Bug fix or broken link"
+  echo "  Update:    — Improvement to existing content or code"
+  echo "  Translate: — Translation work"
+  echo "  Docs:      — Documentation changes"
+  echo "  Refactor:  — Code restructuring (no behaviour change)"
+  echo "  Test:      — Adding or updating tests"
+  echo "  CI:        — CI/CD pipeline changes"
+  echo "  Chore:     — Maintenance (deps, configs, tooling)"
+  echo ""
+  echo "Example: Add: interactive Theory of Change lab"
+  echo ""
+  echo "Your message was: $MSG"
+  exit 1
+fi
+
+# Warn if subject line is too long
+if [ ${#MSG} -gt 72 ]; then
+  echo -e "\033[0;33mWARNING:\033[0m Commit subject is ${#MSG} chars (recommended max: 72)"
+fi

.githooks/pre-commit

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+# Pre-commit hook: catch common mistakes before they're committed
+set -euo pipefail
+
+RED='\033[0;31m'
+YELLOW='\033[0;33m'
+NC='\033[0m' # No Color
+
+echo "Running pre-commit checks..."
+
+# 1. Block commits of sensitive files
+SENSITIVE_PATTERNS=('.env' '.env.local' '.env.production' 'credentials.json' '*.pem' '*.key')
+STAGED_FILES=$(git diff --cached --name-only --diff-filter=ACM)
+
+for pattern in "${SENSITIVE_PATTERNS[@]}"; do
+  while IFS= read -r file; do
+    if [[ -n "$file" ]]; then
+      echo -e "${RED}BLOCKED:${NC} Refusing to commit sensitive file: $file"
+      echo "If this is intentional, use: git commit --no-verify"
+      exit 1
+    fi
+  done < <(echo "$STAGED_FILES" | grep -E "^${pattern//\*/.*}$" 2>/dev/null || true)
+done
+
+# 2. Check for debug/console statements in staged JS/TS/Python files
+CODE_FILES=$(echo "$STAGED_FILES" | grep -E '\.(js|ts|py)$' || true)
+if [ -n "$CODE_FILES" ]; then
+  ISSUES=0
+  while IFS= read -r file; do
+    if git diff --cached "$file" | grep -E '^\+.*console\.(log|debug|warn)\(' | grep -v '// keep' > /dev/null 2>&1; then
+      echo -e "${YELLOW}WARNING:${NC} console.log/debug/warn found in $file"
+      ISSUES=$((ISSUES + 1))
+    fi
+    if git diff --cached "$file" | grep -E '^\+.*(debugger|breakpoint\(\))' > /dev/null 2>&1; then
+      echo -e "${RED}BLOCKED:${NC} debugger statement found in $file"
+      exit 1
+    fi
+  done <<< "$CODE_FILES"
+  if [ $ISSUES -gt 0 ]; then
+    echo -e "${YELLOW}Found $ISSUES file(s) with console statements. Consider removing them.${NC}"
+  fi
+fi
+
+# 3. Check for merge conflict markers
+if [ -n "$STAGED_FILES" ]; then
+  while IFS= read -r file; do
+    if [ -f "$file" ] && grep -rn '<<<<<<<\|=======\|>>>>>>>' "$file" > /dev/null 2>&1; then
+      echo -e "${RED}BLOCKED:${NC} Merge conflict markers found in $file"
+      exit 1
+    fi
+  done <<< "$STAGED_FILES"
+fi
+
+# 4. Warn on large files (> 500KB)
+while IFS= read -r file; do
+  if [ -f "$file" ]; then
+    SIZE=$(wc -c < "$file")
+    if [ "$SIZE" -gt 512000 ]; then
+      SIZE_KB=$((SIZE / 1024))
+      echo -e "${YELLOW}WARNING:${NC} Large file (${SIZE_KB}KB): $file"
+    fi
+  fi
+done <<< "$STAGED_FILES"
+
+echo "Pre-commit checks passed."

.github/ISSUE_TEMPLATE/content_issue.md

@@ -0,0 +1,16 @@
+---
+name: Content Issue
+about: Report outdated, incorrect, or missing content
+title: "[Content] "
+labels: content
+assignees: ''
+---
+
+**Page/Course affected**
+Which page or course has the issue?
+
+**What's wrong?**
+Describe the content issue (outdated stat, broken citation, missing topic, etc.)
+
+**Suggested correction**
+If you know the correct information, please share it with a source/reference.

.github/SECURITY.md

@@ -0,0 +1,42 @@
+# Security Policy
+
+## Supported Versions
+
+| Version | Supported |
+| ------- | --------- |
+| Latest (main branch) | Yes |
+
+## Reporting a Vulnerability
+
+If you discover a security vulnerability in devdata-practice, please report it responsibly.
+
+**Do NOT open a public GitHub issue for security vulnerabilities.**
+
+Instead, please email **hello@impactmojo.in** with:
+
+- A description of the vulnerability
+- Steps to reproduce the issue
+- Any potential impact
+- Suggested fix (if you have one)
+
+We will acknowledge your report within 48 hours and aim to release a fix within 7 days for critical issues.
+
+## Scope
+
+The following are in scope:
+
+- Cross-site scripting (XSS) in any page
+- Authentication or authorisation bypass
+- Exposed secrets or credentials
+- Insecure dependencies with known CVEs
+- Open redirects
+
+## Out of Scope
+
+- Denial of service attacks
+- Social engineering
+- Issues in third-party services
+
+## Recognition
+
+We're happy to credit security researchers in our changelog. Let us know if you'd like to be acknowledged.

.gitignore

@@ -9,3 +9,12 @@ __pycache__/
 dist/
 build/
 .DS_Store
+
+# Added by git standards propagation
+node_modules/
+Thumbs.db
+*.log
+coverage/
+.vscode/
+.idea/
+*.swp

.gitmessage

@@ -0,0 +1,19 @@
+# <prefix>: <short summary in imperative mood, max 72 chars>
+#
+# Prefixes:
+#   Add:       — New feature, course, or tool
+#   Fix:       — Bug fix or broken link
+#   Update:    — Improvement to existing content or code
+#   Translate: — Translation work
+#   Docs:      — Documentation changes
+#   Refactor:  — Code restructuring (no behaviour change)
+#   Test:      — Adding or updating tests
+#   CI:        — CI/CD pipeline changes
+#   Chore:     — Maintenance (deps, configs, tooling)
+#
+# Example:
+#   Add: interactive Theory of Change lab
+#   Fix: broken nav dropdown on mobile Safari
+#
+# Body (optional): explain *why*, not *what* — the diff shows what changed.
+# Wrap at 72 characters.