docs(legal): full legal package — privacy, terms, community rules, seed-law notice (en+es) + Play/Apple/analysis internal docs

docs/legal/seed-legality-notice.md

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+# Tane — Notice on the Legality of Exchanging Seeds
+
+**Version 1.0 — 13 July 2026**
+
+Tane helps people keep and share traditional seeds. Laws about seeds differ a lot
+between countries, and they distinguish sharply between **giving or swapping** seeds
+and **selling** them. This notice is general information, not legal advice; you are
+responsible for following the law where you live and where your seeds are going.
+
+## Gifting and swapping between amateurs
+
+Exchanging seeds **without commercial purpose** — gifts, swaps, seed libraries,
+conservation networks — is broadly recognized and lawful in most places:
+
+- **European Union.** EU seed marketing law regulates *commercial marketing* of seed.
+  Exchange in kind between individuals, and the work of conservation networks and gene
+  banks, fall outside or are expressly exempted; the plant-reproductive-material reform
+  underway (proposal COM(2023) 414) keeps exemptions for amateurs and conservation
+  networks, provided the activity is not commercial.
+- **Spain.** Ley 30/2006 regulates the *commercial* seed trade; non-commercial exchange
+  between amateurs and conservation-oriented exchange are recognized practice (art. 24).
+- **United States.** Following the 2016 amendment to the Recommended Uniform State Seed
+  Law, most states exempt **non-commercial seed sharing** (seed libraries, swaps) from
+  commercial labeling and testing requirements.
+
+## Selling seeds
+
+Selling is different. In the EU and many other jurisdictions, **marketing seed of
+varieties not registered in an official catalogue may be restricted or prohibited**,
+and quantities, labeling, or species may be regulated even for small sellers.
+Exemptions for conservation varieties and amateur quantities exist but vary. If you
+use Tane's option to ask a price, **check your national rules first** — the app cannot
+do this for you.
+
+## Protected varieties
+
+Varieties covered by **plant variety rights (PVR/PBR) or patents** may not be
+propagated or sold without the holder's authorization — this can apply even to seed
+you bought legally. Traditional and heirloom varieties are generally not protected,
+but modern commercial varieties usually are. When in doubt, don't offer it.
+
+## Sending seeds across borders
+
+Most countries restrict importing seeds: **phytosanitary certificates**, prohibited
+species lists, and quarantine rules commonly apply — even to small envelopes between
+individuals, and also **within** the EU for certain species (plant passport rules).
+Before mailing seeds to another country, check the rules of the destination country.
+The safest exchanges are local ones — which is what Tane is designed for.
+
+## Invasive and protected species
+
+Some species may not be exchanged at all in some regions, either because they are
+**invasive** there or because they are **protected**. Lists are regional; check yours.
+
+---
+
+*Tane takes no commission, mediates no transaction, and verifies no offer: exchanges
+are private dealings between the people involved (see the
+[Terms of use](terms-of-use.md)). This notice exists so those dealings are informed
+ones.*