build: switch pre-commit hooks to prek

Replace the hand-rolled .githooks/pre-commit script with prek, matching
the setup used in roborev. The local hook runs `make lint` which now
includes `--fix` for auto-formatting. A separate `lint-ci` target
preserves the no-fix behavior for CI.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: wesm

.githooks/pre-commit

@@ -11,7 +11,7 @@ LDFLAGS := -X main.version=$(VERSION) \
 LDFLAGS_RELEASE := $(LDFLAGS) -s -w
 DESKTOP_DIST_DIR := dist/desktop
 
-.PHONY: build build-release install frontend frontend-dev dev desktop-dev desktop-build desktop-macos-app desktop-macos-dmg desktop-windows-installer desktop-linux-appimage desktop-app test test-short test-postgres test-postgres-ci postgres-up postgres-down e2e vet lint tidy clean release release-darwin-arm64 release-darwin-amd64 release-linux-amd64 install-hooks ensure-embed-dir help
+.PHONY: build build-release install frontend frontend-dev dev desktop-dev desktop-build desktop-macos-app desktop-macos-dmg desktop-windows-installer desktop-linux-appimage desktop-app test test-short test-postgres test-postgres-ci postgres-up postgres-down e2e vet lint lint-ci tidy clean release release-darwin-arm64 release-darwin-amd64 release-linux-amd64 install-hooks ensure-embed-dir help
 
 # Ensure go:embed has at least one file (no-op if frontend is built)
 ensure-embed-dir:
@@ -168,8 +168,16 @@ e2e:
 vet: ensure-embed-dir
 	go vet -tags fts5 ./...
 
-# Lint Go code with project defaults
+# Lint Go code and auto-fix where possible (local development)
 lint: ensure-embed-dir
+	@if ! command -v golangci-lint >/dev/null 2>&1; then \
+		echo "golangci-lint not found. Install with: go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.10.1" >&2; \
+		exit 1; \
+	fi
+	golangci-lint run --fix ./...
+
+# Lint Go code without fixing (for CI)
+lint-ci: ensure-embed-dir
 	@if ! command -v golangci-lint >/dev/null 2>&1; then \
 		echo "golangci-lint not found. Install with: go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.10.1" >&2; \
 		exit 1; \
@@ -211,16 +219,13 @@ release-linux-amd64: frontend
 		-ldflags="$(LDFLAGS_RELEASE)" -trimpath \
 		-o dist/agentsview-linux-amd64 ./cmd/agentsview
 
-# Install pre-commit hook, resolving the hooks directory via git so
-# this works in both normal repos and linked worktrees
+# Install pre-commit hooks via prek
 install-hooks:
-	@hooks_rel=$$(git rev-parse --git-path hooks) && \
-		hooks_dir=$$(cd "$$(dirname "$$hooks_rel")" && echo "$$PWD/$$(basename "$$hooks_rel")") && \
-		git config --local core.hooksPath "$$hooks_dir" && \
-		mkdir -p "$$hooks_dir" && \
-		cp .githooks/pre-commit "$$hooks_dir/pre-commit" && \
-		chmod +x "$$hooks_dir/pre-commit" && \
-		echo "Installed pre-commit hook to $$hooks_dir/pre-commit"
+	@if ! command -v prek >/dev/null 2>&1; then \
+		echo "prek not found. Install with: brew install prek" >&2; \
+		exit 1; \
+	fi
+	prek install
 
 # Show help
 help:
@@ -248,7 +253,8 @@ help:
 	@echo "  postgres-down  - Stop test PostgreSQL container"
 	@echo "  e2e            - Run Playwright E2E tests"
 	@echo "  vet            - Run go vet"
-	@echo "  lint           - Run golangci-lint"
+	@echo "  lint           - Run golangci-lint (auto-fix)"
+	@echo "  lint-ci        - Run golangci-lint (no fix, for CI)"
 	@echo "  tidy           - Tidy go.mod"
 	@echo ""
 	@echo "  release        - Release build for current platform"

Makefile

@@ -271,10 +271,16 @@ make dev            # run Go server in dev mode
 make frontend-dev   # run Vite dev server (use alongside make dev)
 make desktop-dev    # run Tauri desktop app in dev mode
 make test           # Go tests (CGO_ENABLED=1 -tags fts5)
-make lint           # golangci-lint
+make lint           # golangci-lint (auto-fix)
 make e2e            # Playwright E2E tests
+make install-hooks  # install pre-commit hooks via prek
 ```
 
+Pre-commit hooks are managed with [prek](https://github.com/j178/prek).
+Run `brew install prek && make install-hooks` after cloning. The hook
+runs `make lint` on every commit, auto-fixing formatting issues. If the
+hook rewrites files, re-stage and re-commit.
+
 ## Desktop Development
 
 The desktop app is a Tauri wrapper under `desktop/`. It launches

README.md

@@ -0,0 +1,12 @@
+minimum_prek_version = "0.3.6"
+
+[[repos]]
+repo = "local"
+
+[[repos.hooks]]
+id = "golangci-lint"
+name = "golangci-lint"
+language = "system"
+entry = "make lint"
+pass_filenames = false
+always_run = true