selfhost: fullstack self host p1 (#2902)

* wip: self hosted full setup

* wip: self hoast modes

* more wip self host stuff

* wip: full release

* fix: custom apps

* fix: readme

* full-stack md

* docs update

* fix

* fix: commands

* remove comments

* fix: docs and migs

* mysql mig

* fix: docker changes

* fix: mysql checks

* fix: mysql mig

* fix: docker more

* fix: redis conn issues

.env.example

@@ -0,0 +1,18 @@
+# Copy this file to `.env`, fill in the secrets, and `docker compose -f
+# docker-compose.full.yml up -d`. None of the defaults below are safe for
+# anything beyond a local laptop test.
+
+# ── Public-facing ports (nginx) ---------------------------------------
+HTTP_PORT=80
+# HTTPS_PORT=443     # uncomment after you enable TLS in nginx/nginx.conf
+
+# ── MariaDB ------------------------------------------------------------
+MARIADB_ROOT_PASSWORD=replace-with-strong-password
+MARIADB_DATABASE=puter
+MARIADB_USER=puter
+MARIADB_PASSWORD=replace-with-strong-password
+
+# ── S3 (RustFS) --------------------------------------------------------
+S3_ACCESS_KEY=puter
+S3_SECRET_KEY=replace-with-strong-secret
+S3_BUCKET=puter-local