docs: add mod.io terms research note

Capture the mod.io ToU/AUP clauses that bind a published mod (TpF3 has no
Steam Workshop; mod.io is the official in-game mod browser). Uploads grant
mod.io + the game admin a perpetual irrevocable license; game-side rules
override mod.io's per ToU §1.7. Corrects the map's out-of-scope line.

docs/research/modio-terms.md

@@ -0,0 +1,26 @@
+# mod.io Terms: what applies to a published mod
+
+Ad-hoc research 2026-10-05 (no ticket — reference material for the map).
+Fetched from the no-chrome legal routes: `https://mod.io/legal/terms?no_links=true` (Terms of Use) and `https://mod.io/legal/aup?no_links=true` (Acceptable Use Policy). `mod.io/terms` itself is a JS app; the same text is also available via `GET /agreements/types/:id/current` (1 = Terms of Use, 3 = Game Terms, 4 = API Access Terms) with an API key — not needed for offline reading.
+
+## Why this matters
+
+TpF3 has **no Steam Workshop**: the official in-game mod browser is mod.io (see `docs/reference/wiki/modding_general_publishing.md`). The map's old "Steam Workshop publishing" out-of-scope line has been corrected to mod.io. This note is the mod.io side of that story; the game-side rules (free, non-commercial, no offensive content, monetization) are already captured in the publishing wiki doc.
+
+## Key clauses (Terms of Use, by number)
+
+- **§1.5** The Acceptable Use Policy is incorporated into the ToU; breaching the AUP is breaching the ToU.
+- **§1.7 Priority order** (first wins on conflict): Game Terms > game's AUP > mod.io AUP > ToU clauses 15/16 (EU/AU consumers) > Monetization Terms > ToU. So **Urban Games' own rules override mod.io's**.
+- **§1.9** mod.io may change the ToU; 30 days after publication the new terms bind you.
+- **§6.2 UGC license** — by uploading a mod you grant mod.io **and the Relevant Game Admin (Urban Games)** a transferable, sublicensable, royalty-free, **irrevocable, non-exclusive, perpetual worldwide** license to use, reproduce, modify, make derivative works of, and distribute the mod "for the sole purpose of providing the Services". Optional *Enhanced License Rights* (sale/resale) only if separately opted in via the UGC Control Panel, and those are revocable.
+- **§6.3 warranty** — you warrant the UGC is yours or you have the right to distribute it, and does not violate others' rights. This is what makes the wiki's "no content you don't have copyright or permission to distribute" enforceable.
+- **§8 Copyright** — DMCA-style process; mod.io (or the Game Admin) may delete/disable content alleged to infringe.
+- **§11 Termination** — mod.io may terminate/suspend the account immediately for material or repeated breach; and the Game Admin may **restrict access to the game's mod services at any time, without notice**.
+- **AUP** — standard prohibitions: nothing illegal, no spam/malware, no harassment/defamation, no probing or unauthorised access to the service, no scraping of data you aren't meant to get.
+
+## Implications for this mod
+
+- Free and non-commercial is the game-side rule anyway; nothing new here.
+- Uploading = a perpetual irrevocable license to mod.io + Urban Games. Fine for a code-only behavioural mod; just know it before publishing anything with third-party assets (see also the base-game-file reuse rules in the publishing wiki doc).
+- The mod can be pulled or access restricted at Urban Games' discretion at any time — no recourse beyond the ToU's notice process.
+- Nothing in the ToU/AUP touches the technical side of the mod (script API, staging area, etc.); it only governs distribution and conduct.