[shockalotti]

Closes #216. Translation by @kybeq — thanks, this was a complete file and only needed mechanical fixes to satisfy the repo's guards.

What this adds

internal/i18n/locales/pl.json, plus corrected locale lists in CLAUDE.md and ARCHITECTURE §23.

No code change. init() globs internal/i18n/locales, so the footer switcher, the operator's fallback dropdown and the public API payload all pick pl up automatically.

Three changes from the reported file

Key parity (169/169) and printf verbs already passed. These did not:

1. Date tables — all 19 keys. The guard said:

pl.json: dow_short_mon = "Pon", CLDR says "pon."
pl.json: month_short_jan = "Sty", CLDR says "sty"

Every weekday and month was capitalised, and the weekdays dropped the Polish trailing dot. This matters visibly: booking.css applies no text-transform, so the calendar renders the JSON value verbatim — the page would have shown "Pon Sty" where CLDR/Intl says "pon. sty". Fixed to CLDR for all 7 + 12.

2. Typo, twice. "ponowanie" → "ponownie" in email_rebook_intro and email_manage_link_intro_reschedule. "ponowanie" is not a Polish word.

3. Grammar. others changed from "inni" to "innych". hostsLabel renders "… i 3 innych", and Polish takes the genitive plural after a numeral, so nominative "inni" read wrong in that slot. other = "inny" is correct for the 1 case and is unchanged.

That last one is the only edit I'm not fully certain of as a non-speaker — @kybeq, if you'd say "3 inni" there, say so and I'll revert it.

Docs

CLAUDE.md and ARCHITECTURE §23 both said "9 locales", which was already stale — el had shipped without updating either. Both now list 11: en es fr fr-CA de el it nl pl pt sv.

Verification

• go test ./internal/i18n/ green, including TestDateTablesMatchCLDR, TestAllLocalesHaveTheSameKeys and TestAllLocalesHaveMatchingFormatVerbs.
• Running instance, GET /book/<slug>?lang=pl: page renders in Polish, switcher lists polski and selects it, <html lang="pl">, and the embedded payload carries month_short_jan:"sty", dow_short_mon:"pon.".

Standing caveat

Per the repo's own note, non-English locales are unreviewed unless a native speaker has checked them. This one is from a Polish speaker in #216, which is better provenance than the LLM-drafted set — but the two edits above are mine, so a quick native read of #216's thread is still worth it.

🤖 Generated with Claude Code

[pullfrog]

ℹ️ No critical issues — the locale file is sound; the docs list is still stale in three places.

Reviewed changes

• Added internal/i18n/locales/pl.json (169 keys, identical key set/order to en.json), with CLDR-corrected weekday/month abbreviations, two ponowanie → ponownie typo fixes, and others changed to genitive innych.
• Updated the locale lists in CLAUDE.md and docs/ARCHITECTURE.md §23 to 11 locales, adding el and pl.
• Verified go test ./internal/i18n/ passes; the CLDR cross-check runs under node and agrees with the date tables.

ℹ️ Three locale lists still say 9 and omit el and pl

The PR fixes the stale count in CLAUDE.md and ARCHITECTURE §23, but the same statement survives unchanged in three other places, so the repo now contradicts itself (11 vs 9). Since correcting stale docs is part of this PR's scope, these should land with it.

Technical details

# Stale locale lists after adding `pl`

## Affected sites
- `README.md:203-206` — bullet says "**9 languages**" and enumerates English…Swedish; missing Greek and Polish.
- `CONTRIBUTING.md:77` — "Calnode ships 9 locales (`en es fr fr-CA de it pt nl sv`)…".
- `docs/ARCHITECTURE.md:990` — §1 says the booking surfaces "ship in 9 languages (§23)", while §23 now says 11.

## Required outcome
- All three state 11 locales and include `el` and `pl`, matching `CLAUDE.md:143` and `docs/ARCHITECTURE.md:1232`.

## Suggested approach
- README: bump the count and append "Greek · Polish" to the name list.
- CONTRIBUTING: bump the count and extend the code list to include `el` and `pl`.
- ARCHITECTURE:990: change 9 → 11; the existing §23 cross-reference already points at the updated list, so no other text changes.

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