chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

contrib/grafana-monitoring-mixin/Makefile

@@ -0,0 +1,31 @@
+JSONNET_FMT := jsonnetfmt -n 2 --max-blank-lines 1 --string-style s --comment-style s
+
+.PHONY: all
+all: build dashboards_out
+
+vendor: jsonnetfile.json
+	jb install
+
+.PHONY: build
+build: vendor
+
+.PHONY: fmt
+fmt:
+	find . -name 'vendor' -prune -o -name '*.libsonnet' -print -o -name '*.jsonnet' -print | \
+		xargs -n 1 -- $(JSONNET_FMT) -i
+
+.PHONY: lint
+lint: build
+	find . -name 'vendor' -prune -o -name '*.libsonnet' -print -o -name '*.jsonnet' -print | \
+		while read f; do \
+			$(JSONNET_FMT) "$$f" | diff -u "$$f" -; \
+		done
+	mixtool lint mixin.libsonnet
+
+dashboards_out: mixin.libsonnet config.libsonnet $(wildcard dashboards/*)
+	@mkdir -p dashboards_out
+	jsonnet -J vendor -m dashboards_out lib/dashboards.jsonnet
+
+.PHONY: clean
+clean:
+	rm -rf dashboards_out