DEVX-145: feat: extract reusable components from infra and grm into devx

CHANGELOG.md

@@ -2,6 +2,27 @@
 
 All notable changes to this project will be documented in this file.
 
+## [Unreleased]
+
+### Features
+
+- Extract reusable components from infra and grm into devx:
+  - `devx.utils.ui.say()` — unified click.echo + logging output
+  - `devx.utils.api.APIClient` — base HTTP API client class with retry logic
+  - `devx.utils.jinja` — Jinja2 environment helpers with Ansible-compatible filters
+  - `devx.i18n.configure_i18n()` — configurable `lang_env_var` and `translations_path_env_var`
+  - `devx.ci.cancel_superseded_runs` — cancel in-flight CI runs for the same PR branch
+  - `devx.ci.check_workflow_artifact_deps` — verify artifact download jobs depend on upload jobs
+  - `devx.ci.check_workflow_tofu_init` — verify tofu-state jobs have a tofu-init step
+  - `devx.tools.check_docker_init` — check Docker Compose services with healthchecks have init: true
+  - `devx.tools.check_ansible_set_fact_to_json` — check set_fact tasks don't misuse to_json
+  - `devx.tools.check_alert_rules` — validate Prometheus alert rules with promtool
+- Add `jinja2` and `pyyaml` as core dependencies (previously in `deploy` extras only)
+- Register new CLI commands: `devx ci cancel-superseded-runs`, `devx ci check-workflow-artifact-deps`,
+  `devx ci check-workflow-tofu-init`, `devx tools check-docker-init`,
+  `devx tools check-ansible-set-fact-to-json`, `devx tools check-alert-rules`
+- Add Makefile targets for all new check tools
+
 ## [0.47.3] - 2026-07-17
 
 ### Bug Fixes