# Work Summary — 2026-08-03 23:58

## Task
Add a `Makefile` with a `make dev` target: apply pending DB migrations, start the Tailwind watcher, and run the server, all from one command.

## Context
User pushed back on the initial framing ("I can already start the server with `go run .`") — fair, since that part was never the friction. The real friction, confirmed via `.zsh_history`, is the *other* two steps done by hand around it: the `migrate` CLI invoked with its full DSN spelled out literally ~10 times over recent weeks (`migrate -path database_migrations -database "postgres://app_client:app_password@localhost:5432/inventory_2?sslmode=disable" up 1`), and `tailwind.sh` (which already runs `--watch`) needing to be started manually in a separate terminal — easy to forget, leading to template/CSS changes silently not showing up. Framed the Makefile's value around removing those two specific manual steps, not around wrapping `go run .`.

## Changes
- New `Makefile` at repo root:
  - `-include .env` + `export` so `DATABASE_URL` (and everything else in `.env`) is available to recipes without hand-typing it — fixes the DSN-drift risk where the hand-typed migrate command could silently diverge from what's actually in `.env`.
  - `dev` (default goal): depends on `migrate-up`, then backgrounds `./tailwind.sh`, captures its PID, sets a trap to kill it on `EXIT`/`INT`/`TERM`, then runs `go run .` in the foreground. Ctrl-C (or any termination) stops both cleanly.
  - `migrate-up` / `migrate-down` / `migrate-version`: thin wrappers around the `migrate` CLI using `$(DATABASE_URL)`, so the DSN is typed once (in `.env`) instead of per-invocation.
  - `tailwind`: one-shot alias for `./tailwind.sh` (still watch mode, matching existing script behavior).
  - `run`: plain `go run .`, for when you don't want migrations/CSS touched.

## Verification
- `make migrate-version` / `make migrate-up` — ran cleanly against the real local DB (idempotent: reported "no change" since already at the latest migration).
- `make dev` under a `timeout` — confirmed via log output that migrations ran, Tailwind's watcher started (`tailwindcss v4.1.18` banner), the server bound and served a 200 on `/ui`, and on SIGTERM both the server and the Tailwind watcher shut down (verified no leftover `tailwindcss`/`npx` process survived — first check was a `pgrep` self-match false positive on the search string appearing in the invoking shell's own command line, re-verified cleanly with `ps aux`).

## Incident during verification (self-caused, fixed)
Killing `make dev` mid-run once truncated the *committed* `styles/index.css` to empty (1370 lines → 0) — the Tailwind watcher was killed while mid-write on its first build. Caught it in the post-test `git status`/`git diff` review before finishing; restored via `git checkout -- styles/index.css`. Worth knowing for next time: killing the watcher while it's actively writing that file is a real (if narrow) way to corrupt a tracked file — not something `make dev` itself introduces (same risk exists running `tailwind.sh` directly), but noting it here since it's the kind of thing to double check after using this target.

## Follow-ups / not done here
- Next planned step per the dev-iteration plan: broaden test coverage beyond `server/ui/charts/*_test.go` (nothing currently covers `domains/accounts`, `domains/reports`, `domains/raw_events`, or the Amazon mock pipeline).