sciagent code + Gitea Actions CI/CD

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

be0/migrations/015_document_templates.sql

@@ -0,0 +1,24 @@
+-- Admin-managed document templates: a .docx (stored in MinIO bucket initiative-templates)
+-- plus its extracted Jinja placeholder fields. Applicants render a filled PDF by template id.
+-- Apply after 014_registration_otp.sql:
+--   docker exec -i initiative-postgres psql -U initiative -d initiatives < be0/migrations/015_document_templates.sql
+
+CREATE TABLE IF NOT EXISTS document_templates (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  name TEXT NOT NULL,
+  description TEXT,
+  storage_key TEXT NOT NULL,
+  original_filename TEXT,
+  content_sha256 TEXT,
+  fields JSONB NOT NULL DEFAULT '[]'::jsonb,
+  is_active BOOLEAN NOT NULL DEFAULT TRUE,
+  created_by UUID REFERENCES users(id) ON DELETE SET NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE INDEX IF NOT EXISTS idx_document_templates_active
+  ON document_templates (is_active, created_at DESC);
+
+COMMENT ON TABLE document_templates IS
+  'Admin-managed DOCX templates (file in MinIO initiative-templates) with extracted Jinja placeholder fields. Applicants render filled PDFs by template id.';