# Changelog

All notable changes to Klarbild are documented here. Newest first.

## 2026-08-18 — Print module: exact sizes, sheets & crop marks (no AI)

### Added
- **Print module (`/druck`)** — a lab-style, completely AI-free path: crop, scale and place
  images at exact physical sizes. No model call, no cost, no queue.
- **Interactive crop editor** — pan and zoom on a fixed target aspect ratio (rule-of-thirds
  overlay); the crop is stored relative (0..1) so it survives any source resolution.
- **Size presets & free input** — biometric passport 35 × 45 mm, 2 × 3 / 3 × 4 / 4 × 5 / 4,5 × 6 cm,
  9 × 13 … 50 × 70 cm, squares, DIN. Free input understands `12x15` (cm), `35x45mm`, `5`
  (= 5 × 5 cm) and `4:3/15` (ratio + long edge).
- **Sheet layout** — paper presets DIN A6–A2 incl. **A3+ (329 × 483 mm)**, photo-paper cuts
  (9 × 13 … 20 × 30), US Letter/Legal, plus any custom paper size. Portrait/landscape,
  printer margin, centering, per-image copy count.
- **Automatic nesting** — identical sizes produce an exact grid; mixed sizes go through a
  MaxRects packer that fixes one orientation per format and tries every combination,
  so eight passport photos land in the free space next to the 13 × 18.
- **Crop marks** — `corner` (fine 0.25 pt marks outside the trim box, Photoshop/InDesign
  convention, 4 mm long / 3 mm offset by default) or `grid` (continuous guides across the
  sheet that never cross another image). Gap between images adapts to the chosen marks.
- **Bleed** (0–10 mm) — the image extends past the trim box, edge pixels are copied rather
  than stretched; the gap is always ≥ 2 × bleed so neighbouring bleeds cannot overlap.
- **PDF output at 1:1** — the PDF page is exactly the sheet size (pdf-lib), with a footer
  stating the sizes, dpi and the "print at 100 %, not fit-to-page" reminder.
- **Single export** — one image at an exact size as PNG/JPG with dpi metadata, plus a
  resolution warning when the source cannot hold the requested dpi.
- **Sheet templates** — save the whole sheet setup (paper, marks, formats, counts) as a
  reusable preset (`print_presets`, migration `013`).
- **All three entrances** — `/druck` in the web app, `📐 Druckbogen` in Telegram (fully
  button-driven, returns an A4 PDF), and the MCP tools `exact_size` / `print_sheet`.
- **API** — `POST /api/print/single`, `GET /api/print/single?size=…` (mm → px calculator),
  `POST /api/print/sheet`, `GET|POST|DELETE /api/print/presets`. Documented in `/llms.txt`.
- **Tests** — `tests/printlayout.test.ts` (`npm test`) covers size parsing, exact mm → px,
  non-overlap, margins, bleed spacing, mark geometry and multi-sheet paging.

## 2026-07-23 — Compose, generate & second backup

### Added
- **Compose mode** — combine multiple images + a text description into one new image.
- **Generate mode** — create images from text only, no source needed.
- **The Frame "extend"** — outpaint more scene around the motif instead of only cropping.
- **Reuse** — take a finished result back into the studio as a new source to edit further.
- **Alternatives** — generate additional versions of the same image, grouped with a switcher.
- **Folders** — filter, rename and delete in the library; per-folder delivery gallery mapping.
- **Bulk actions** — download selected results as a ZIP, move several into a folder at once.
- **Thumbnails** — low-res previews for the library grid.
- **Models** — quality tiers incl. open-source (FLUX.2); the used model is shown per image.
- **Color tags** — Picdrop-style flags (red / orange / green / final) per image, filterable, and
  written into the companion `.md` metadata.
- **Tap-to-save** — "Laden" opens the image full-bleed so on iPhone/iPad a long-press offers
  "Save to Photos" (plus a classic file download).
- **Access control & privacy** — library visibility (own-only vs shared), optional anonymous
  generations (creator hidden from non-admins), admins always see all.
- **Private sessions** — generate-and-forget: no library entry, no delivery/backup, no stored
  prompt, sources purged, result auto-deleted shortly after. Enabled globally by admin or forced
  per user.
- **NSFW gate** — models flagged NSFW are only selectable/visible when the admin enables it.
  Operator responsibility; content involving minors is never permitted.
- **Single-image transform** — compose now accepts one image, so a single photo can be
  transformed by prompt (e.g. "make it an oil painting") and put onto a format.
- **Multiple delivery targets** — besides the default Picdrop, add any number of FTP/SFTP
  destinations; selectable in the studio ("Wohin?", incl. NAS); a preset or folder can be
  hard-wired to a specific target + gallery.
- **Backup to any target** — mark any target as a backup destination (like the NAS); one-click
  "back up all images" mirrors to all backup destinations.
- **Metadata sidecar** — optionally ship a companion `.md` (prompt, model, format …) next to
  each image on Picdrop/NAS/FTP.
- **Prompt view** — every generated image shows its prompt in the library (with copy).
- **Preset manager** — save current settings as a preset, load and delete presets.
- **API token + MCP server** — programmatic access so an assistant can push images from a
  local folder or iMessage into Klarbild (`mcp/klarbild-mcp.mjs`).
- **The Frame** preset now delivers to its own gallery ("TheFrame-Backgrounds").
- **Second backup** — mirror every result over SFTP/FTPS to a NAS (works over Tailscale too),
  with a "NAS ✓" badge and a "mirror all existing images" action.
- **Storage management** — thumbnails, delete sources after processing, auto-retention.
- **Telegram** — fully button-driven (persistent keyboard + command menu): edit, compose,
  "new image", reuse — no slash commands required.
- **Reset** — wipe library, jobs and folders cleanly (keeps users, settings, models, recipes),
  guarded by a typed confirmation.
- **Help page**, in-app **changelog**, and a NAS **reachability diagnostic**.

### Fixed / hardened
- Real per-image cost cap (monthly budget) enforced by the worker.
- Idempotent job completion (no duplicate delivery/notification).
- Before/after comparison works for composed images; hidden for text-only results.

## 2026-07-22 — Foundation

### Added
- Astro 5 + React islands UI (mobile-first), PostgreSQL, fs/S3 storage abstraction.
- pg-boss job queue with in-process worker; sharp pipeline (exact cm/dpi print sizes,
  sticker contour).
- OpenRouter image gateway; admin-managed models.
- Picdrop delivery over SFTP/FTPS; recipes; library with before/after.
- Telegram bot (grammY webhook); argon2 auth; AES-256-GCM secret encryption.