diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 3c6d282..f8613ac 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -27,3 +27,14 @@ repos:
         entry: scripts/lint-docs.sh
         language: system
         pass_filenames: false
+      - id: eslint
+        name: ESLint
+        entry: npx eslint
+        language: system
+        types: [typescript]
+        files: '\.(ts|tsx)$'
+      - id: prettier
+        name: Prettier
+        entry: npx prettier --check
+        language: system
+        files: '\.(ts|tsx)$'
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e9d4076..bf9f1e3 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -41,6 +41,8 @@ Hooks run on each commit and enforce:
 
 - ABI snapshot hygiene (`abis/*.json` must change together with `COMEBACKHERE-contracts/contracts/*/src/`)
 - Markdown linting
+- TypeScript/TSX linting (ESLint)
+- TypeScript/TSX formatting (Prettier)
 - Trailing whitespace detection
 - End-of-file fixing (ensure files end with a newline)
 - JSON validation
diff --git a/Makefile b/Makefile
index e79c7de..9a64ebb 100644
--- a/Makefile
+++ b/Makefile
@@ -26,3 +26,19 @@ deploy-testnet:
 
 abi-snapshot:
 	@$(MAKE) update-abi-snapshots
+
+verify:
+	@./scripts/verify.sh
+
+lint-docs:
+	@./scripts/lint-docs.sh
+
+snapshot:
+	@$(MAKE) update-abi-snapshots
+
+check-snapshot:
+	@$(MAKE) check-abi-snapshots
+
+default: verify
+
+.PHONY: default snapshot check-snapshot
diff --git a/justfile b/justfile
index bf1df18..3cd0563 100644
--- a/justfile
+++ b/justfile
@@ -4,11 +4,17 @@
 snapshot:
     @./scripts/generate_abi_metadata.sh abis
 
+update-abi-snapshots: snapshot
+
+abi-snapshot: snapshot
+
 # Verify committed ABI snapshots match contract sources (no writes)
 check-snapshot:
     @./scripts/generate_abi_metadata.sh /tmp/comebackhere-abis-check
     @diff -ru abis/ /tmp/comebackhere-abis-check/
 
+check-abi-snapshots: check-snapshot
+
 # Lint markdown documentation
 lint-docs:
     @./scripts/lint-docs.sh
@@ -17,5 +23,23 @@ lint-docs:
 verify:
     @./scripts/verify.sh
 
+# Start local Docker environment
+dev:
+    docker-compose up -d
+
+# Run contract tests
+test:
+    cargo test --manifest-path COMEBACKHERE-contracts/Cargo.toml
+
+# Lint TypeScript, contracts, and documentation
+lint:
+    @./scripts/lint-docs.sh && cargo clippy --manifest-path COMEBACKHERE-contracts/Cargo.toml -- -D warnings && (cd frontend && npx eslint src --ext ts,tsx --report-unused-disable-directives)
+
+# Deploy to testnet
+deploy-testnet:
+    @test -n "$$STELLAR_NETWORK" || (echo "ERROR: STELLAR_NETWORK is not set" && exit 1)
+    @test -n "$$DEPLOYER_SECRET" || (echo "ERROR: DEPLOYER_SECRET is not set" && exit 1)
+    @./scripts/deploy_testnet.sh
+
 # Default target
 default: verify
diff --git a/scripts/check_make_just_parity.sh b/scripts/check_make_just_parity.sh
new file mode 100755
index 0000000..c03892f
--- /dev/null
+++ b/scripts/check_make_just_parity.sh
@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+# check_make_just_parity.sh — verify Makefile and justfile have equivalent targets
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+
+# Extract Makefile targets (targets that start at column 0 and end with :)
+MAKE_TARGETS=$(grep -E '^[a-zA-Z0-9_-]+:' "$ROOT_DIR/Makefile" | sed 's/:.*//g' | sort)
+
+# Extract justfile targets (lines with # at start of recipe)
+JUST_TARGETS=$(grep -E '^[a-zA-Z0-9_-]+:' "$ROOT_DIR/justfile" | sed 's/:.*//g' | sort)
+
+# Convert to arrays for comparison
+mapfile -t MAKE_ARRAY <<<"$MAKE_TARGETS"
+mapfile -t JUST_ARRAY <<<"$JUST_TARGETS"
+
+# Compare targets
+MISSING_IN_JUST=()
+MISSING_IN_MAKE=()
+
+for target in "${MAKE_ARRAY[@]}"; do
+  if ! grep -q "^$target:" "$ROOT_DIR/justfile"; then
+    MISSING_IN_JUST+=("$target")
+  fi
+done
+
+for target in "${JUST_ARRAY[@]}"; do
+  if ! grep -q "^$target:" "$ROOT_DIR/Makefile"; then
+    MISSING_IN_MAKE+=("$target")
+  fi
+done
+
+# Report results
+if [[ ${#MISSING_IN_JUST[@]} -gt 0 ]] || [[ ${#MISSING_IN_MAKE[@]} -gt 0 ]]; then
+  echo "ERROR: Makefile and justfile targets are not in parity" >&2
+  if [[ ${#MISSING_IN_JUST[@]} -gt 0 ]]; then
+    echo "Missing in justfile: ${MISSING_IN_JUST[*]}" >&2
+  fi
+  if [[ ${#MISSING_IN_MAKE[@]} -gt 0 ]]; then
+    echo "Missing in Makefile: ${MISSING_IN_MAKE[*]}" >&2
+  fi
+  exit 1
+fi
+
+echo "Makefile and justfile targets are in parity."
+exit 0
diff --git a/scripts/coverage.sh b/scripts/coverage.sh
index 263014d..9a41f98 100755
--- a/scripts/coverage.sh
+++ b/scripts/coverage.sh
@@ -1,5 +1,5 @@
-#!/bin/bash
-set -e
+#!/usr/bin/env bash
+set -euo pipefail
 
 # Generate coverage report for COMEBACKHERE contract tests.
 # Outputs HTML report to coverage/ directory and prints terminal summary.
diff --git a/scripts/deploy_local.sh b/scripts/deploy_local.sh
index fe3084f..5d8c0c0 100755
--- a/scripts/deploy_local.sh
+++ b/scripts/deploy_local.sh
@@ -16,34 +16,39 @@ echo "Building COMEBACKHERE contracts for local standalone network via $SOROBAN_
 # Build from the contracts repo (sibling directory)
 (cd ../COMEBACKHERE-contracts && cargo build --target wasm32-unknown-unknown --release)
 
-cat > abis/deployed.local.json <<JSON
-{
-  "network": "$STELLAR_NETWORK",
-  "rpc_url": "$SOROBAN_RPC_URL",
-  "invoice_contract_id": "${INVOICE_CONTRACT_ID:-C...}",
-  "treasury_contract_id": "${TREASURY_CONTRACT_ID:-C...}",
-  "compliance_contract_id": "${COMPLIANCE_CONTRACT_ID:-C...}",
-  "generated_at": "$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
-}
-JSON
-
-echo "Local contract deployment metadata written to abis/deployed.local.json"
-echo "Replace placeholder IDs with actual deployed contract IDs before backend integration."
-
-genenv() {
-  if [ -f .env.local ]; then
-    # shellcheck disable=SC1091
-    set -a
-    source .env.local
-    set +a
-  fi
-}
-
-genenv
+# Deploy contracts and capture IDs
+# These are placeholder deploy commands — actual deployment logic should be integrated here
+INVOICE_WASM="../COMEBACKHERE-contracts/target/wasm32-unknown-unknown/release/invoice_contract.wasm"
+TREASURY_WASM="../COMEBACKHERE-contracts/target/wasm32-unknown-unknown/release/treasury_contract.wasm"
+COMPLIANCE_WASM="../COMEBACKHERE-contracts/target/wasm32-unknown-unknown/release/compliance_contract.wasm"
+
+if [ ! -f "$INVOICE_WASM" ] || [ ! -f "$TREASURY_WASM" ] || [ ! -f "$COMPLIANCE_WASM" ]; then
+  echo "ERROR: Contract WASM binaries not found after build" >&2
+  exit 1
+fi
+
+echo "Deploying contracts to $STELLAR_NETWORK…"
+# Uncomment and integrate actual soroban contract deploy commands:
+# soroban contract deploy --wasm "$INVOICE_WASM" ... > /tmp/invoice_deploy.txt 2>&1
+# soroban contract deploy --wasm "$TREASURY_WASM" ... > /tmp/treasury_deploy.txt 2>&1
+# soroban contract deploy --wasm "$COMPLIANCE_WASM" ... > /tmp/compliance_deploy.txt 2>&1
+#
+# Parse output to extract contract IDs:
+# INVOICE_CONTRACT_ID=$(grep -oP 'Contract ID: \K[C][A-Z0-9]*' /tmp/invoice_deploy.txt || echo "C...")
+# TREASURY_CONTRACT_ID=$(grep -oP 'Contract ID: \K[C][A-Z0-9]*' /tmp/treasury_deploy.txt || echo "C...")
+# COMPLIANCE_CONTRACT_ID=$(grep -oP 'Contract ID: \K[C][A-Z0-9]*' /tmp/compliance_deploy.txt || echo "C...")
+
+if [ -f .env.local ]; then
+  # shellcheck disable=SC1091
+  set -a
+  source .env.local
+  set +a
+fi
 
 export STELLAR_NETWORK="${STELLAR_NETWORK:-standalone}"
 export INVOICE_CONTRACT_ID="${INVOICE_CONTRACT_ID:-C...}"
 export TREASURY_CONTRACT_ID="${TREASURY_CONTRACT_ID:-C...}"
 export COMPLIANCE_CONTRACT_ID="${COMPLIANCE_CONTRACT_ID:-C...}"
 
-scripts/export_deployed_addresses.sh
+echo "Running deployment validation…"
+"$ROOT_DIR/scripts/export_deployed_addresses.sh"
diff --git a/scripts/deploy_testnet.sh b/scripts/deploy_testnet.sh
index 0c690fa..c3b850c 100755
--- a/scripts/deploy_testnet.sh
+++ b/scripts/deploy_testnet.sh
@@ -16,19 +16,27 @@ echo "Building COMEBACKHERE contracts for $STELLAR_NETWORK via $SOROBAN_RPC_URL"
 # Build from the contracts repo (sibling directory)
 (cd ../COMEBACKHERE-contracts && cargo build --target wasm32-unknown-unknown --release)
 
-cat > abis/deployed.testnet.json <<JSON
-{
-  "network": "$STELLAR_NETWORK",
-  "rpc_url": "$SOROBAN_RPC_URL",
-  "invoice_contract_id": "${INVOICE_CONTRACT_ID:-C...}",
-  "treasury_contract_id": "${TREASURY_CONTRACT_ID:-C...}",
-  "compliance_contract_id": "${COMPLIANCE_CONTRACT_ID:-C...}",
-  "generated_at": "$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
-}
-JSON
-
-echo "Contract deployment metadata written to abis/deployed.testnet.json"
-echo "Replace placeholder IDs with soroban contract deploy output before backend integration."
+# Deploy contracts and capture IDs
+# These are placeholder deploy commands — actual deployment logic should be integrated here
+INVOICE_WASM="../COMEBACKHERE-contracts/target/wasm32-unknown-unknown/release/invoice_contract.wasm"
+TREASURY_WASM="../COMEBACKHERE-contracts/target/wasm32-unknown-unknown/release/treasury_contract.wasm"
+COMPLIANCE_WASM="../COMEBACKHERE-contracts/target/wasm32-unknown-unknown/release/compliance_contract.wasm"
+
+if [ ! -f "$INVOICE_WASM" ] || [ ! -f "$TREASURY_WASM" ] || [ ! -f "$COMPLIANCE_WASM" ]; then
+  echo "ERROR: Contract WASM binaries not found after build" >&2
+  exit 1
+fi
+
+echo "Deploying contracts to $STELLAR_NETWORK…"
+# Uncomment and integrate actual soroban contract deploy commands:
+# soroban contract deploy --wasm "$INVOICE_WASM" ... > /tmp/invoice_deploy.txt 2>&1
+# soroban contract deploy --wasm "$TREASURY_WASM" ... > /tmp/treasury_deploy.txt 2>&1
+# soroban contract deploy --wasm "$COMPLIANCE_WASM" ... > /tmp/compliance_deploy.txt 2>&1
+#
+# Parse output to extract contract IDs:
+# INVOICE_CONTRACT_ID=$(grep -oP 'Contract ID: \K[C][A-Z0-9]*' /tmp/invoice_deploy.txt || echo "C...")
+# TREASURY_CONTRACT_ID=$(grep -oP 'Contract ID: \K[C][A-Z0-9]*' /tmp/treasury_deploy.txt || echo "C...")
+# COMPLIANCE_CONTRACT_ID=$(grep -oP 'Contract ID: \K[C][A-Z0-9]*' /tmp/compliance_deploy.txt || echo "C...")
 
 if [ -f .env.testnet ]; then
   # shellcheck disable=SC1091
@@ -41,4 +49,6 @@ export STELLAR_NETWORK="${STELLAR_NETWORK:-testnet}"
 export INVOICE_CONTRACT_ID="${INVOICE_CONTRACT_ID:-C...}"
 export TREASURY_CONTRACT_ID="${TREASURY_CONTRACT_ID:-C...}"
 export COMPLIANCE_CONTRACT_ID="${COMPLIANCE_CONTRACT_ID:-C...}"
-scripts/export_deployed_addresses.sh
+
+echo "Running deployment validation…"
+"$ROOT_DIR/scripts/export_deployed_addresses.sh"
diff --git a/scripts/lint-docs.sh b/scripts/lint-docs.sh
index 5948576..2ac57ce 100755
--- a/scripts/lint-docs.sh
+++ b/scripts/lint-docs.sh
@@ -1,14 +1,11 @@
-#!/bin/bash
-set -e
-
-# Lint markdown documentation
-# Enforces style rules: no trailing spaces, consistent heading levels, consistent list style
+#!/usr/bin/env bash
+set -euo pipefail
 
 echo "Linting markdown documentation..."
 
 npx markdownlint-cli2 "**/*.md" "#node_modules" || {
-  echo "✗ Markdown linting failed"
-  echo "  Fix issues or run: npx markdownlint-cli2 --fix \"**/*.md\" \"#node_modules\""
+  echo "✗ Markdown linting failed" >&2
+  echo "  Fix issues or run: npx markdownlint-cli2 --fix \"**/*.md\" \"#node_modules\"" >&2
   exit 1
 }