docs(self-host): sovereign Sverige guide, backup/restore scripts, Speed Insights gate (#1744)

docs/SOVEREIGN.md (run Accounted on Swedish infrastructure: providers, self-hosted Supabase gotchas, backup/restore runbook, honest dependency list), scripts/self-host/backup.sh + restore.sh (pg_dump custom format, storage tar, SHA-256 manifest, S3-compatible upload; ACLs are preserved through the restore and re-verified against an acl-manifest including sequences; the resume hook always runs after a failed quiesce and the hooks must be configured as a pair), Vercel Speed Insights gated off for self-hosted, and stale self-host docs corrected (assistant Q&A and categorization run on BYO OpenAI-compatible models; SMTP via EMAIL_PROVIDER=smtp after #1746; connector subscription described as proposed only).

.env.docker.example

@@ -40,6 +40,28 @@ NEXT_PUBLIC_SELF_HOSTED=true
 # (http:// by ws://). Set only if Realtime is served from another origin.
 # NEXT_PUBLIC_SUPABASE_WS_URL=wss://your-project.supabase.co
 
+# Optional: AI features (document extraction, in-app assistant). The image
+# includes the extraction extensions; set ONE backend. See
+# docs/SELF-HOSTING.md "AI Features" for the full list of model overrides.
+# 1. Claude via AWS Bedrock (inference stays inside the EU through the eu.
+#    cross-region inference profile; AWS_REGION is the API endpoint, not a pin):
+# AWS_ACCESS_KEY_ID=
+# AWS_SECRET_ACCESS_KEY=
+# AWS_REGION=eu-north-1
+# 2. Claude via the direct Anthropic API:
+# ANTHROPIC_API_KEY=
+# 3. Any OpenAI-compatible endpoint (e.g. a Swedish inference provider; see
+#    docs/SOVEREIGN.md). A model id is required. Extraction, the assistant's
+#    question-and-answer and categorization run here; only the specialized
+#    Anthropic-only conversational flows return 503 (see docs/SELF-HOSTING.md,
+#    What runs on any model).
+# AI_BASE_URL=https://api.example.se/v1
+# AI_API_KEY=
+# AI_MODEL=
+# AI_EXTRACTION_MODEL=       # a vision model, if AI_MODEL is not one
+# AI_VISION=true             # false for a text-only model
+# AI_PDF_MODE=auto           # auto | native | rasterize (the image ships pdftoppm)
+
 # Optional: outbound email (invoices, reminders). Pick one provider.
 # 1. Resend (what hosted runs):
 # RESEND_API_KEY=