Doku: Farbprofile (--farben, cfg/farben.cfg, libs/Farben.py)

CLAUDE.md dokumentiert das neue SVG-Farbprofil-Feature: den Schalter
--farben, die Profile in cfg/farben.cfg (palette / kategorien) und das
Modul libs/Farben.py.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -73,8 +73,9 @@ the same layout:
 The GA cycle and penalty scheme are read directly from `$PLATZ_CFG/zyklus.cfg` and
 `$PLATZ_CFG/strafen.cfg` (independent of `--indir`). There is no `platz.cfg` indirection any
 more — it was removed; `zyklus.cfg`/`strafen.cfg` are loaded straight from `$PLATZ_CFG`, the
-GA profile is chosen by the `--zyklus-art <name>` switch (default `Adaptiv`), and the penalty
-profile by the `--strafen <name>` switch (default `default`).
+GA profile is chosen by the `--zyklus-art <name>` switch (default `Adaptiv`), the penalty
+profile by the `--strafen <name>` switch (default `default`), and the SVG colour profile by
+the `--farben <name>` switch (default `grosse_gruppen`).
 
 - `cfg/zyklus.cfg` — defines the GA profiles. Two flavours: **static** profiles (`Easy`,
   `Simple`) give an explicit sequence of actions (`e`=erzeugen/create, `s`=selektieren/
@@ -97,6 +98,18 @@ profile by the `--strafen <name>` switch (default `default`).
   between split-off parts; absent = distance not penalised). `Strafliste.laden(FileName,
   Sektion='default')` parses one section; the old `[Trennung]`/`[Globals]`/`[Abstand]`
   three-section layout is gone.
+- `cfg/farben.cfg` — SVG colour profiles, chosen by `--farben <section>` (default
+  `grosse_gruppen`) / env `PLATZ_FARBENART`, parsed by `Farben.Farbschema.laden()` (in
+  `libs/Farben.py`) and passed into `Sitzplatzverteilung.alsSVG(..., Farbschema=...)`. Two
+  modes: `Modus = palette` (a `Palette` colour list cycled per group by sorted group id — the
+  `grosse_gruppen` profile) and `Modus = kategorien` (the `hochzeit` profile — splits groups
+  into **Familie** = members mostly share a surname, coloured along `FamilienVerlaeufe`
+  gradients blue→green / yellow→orange, one gradient bucket per surname; **Verein** = any
+  other named group, along `VereinVerlauf` violet→grey; **VIP** = fixed-table people with no
+  GA group, the start of `VIPVerlauf`, red). Gradient syntax `"start -> end"`. Anonymous bulk
+  bookings (all members identical, e.g. an `anzahl`-expanded "Gast Musikverein") are *not*
+  treated as a family. Absent/invalid config falls back to the built-in palette
+  (`Farbschema=None`), so the SVG always renders.
 
 `tische.ini`/`bestellung.json`/`TischePersonen.txt`/`PersonenTische.csv` are fixed filenames
 resolved as `os.path.join(indir, ...)` in `platz.py`.