chore: add preview to all units and remove 2025q4 narrative refs #29

	name: Roadmap Validator

	on:
	workflow_dispatch:
	inputs:
	paths:
	description: 'Space-separated paths or directories to validate, ex 2025q4 '
	required: false
	default: ''
	pull_request:
	branches:
	- master
	paths:
	- 'content/dst/**'
	- 'content/qa/**'
	- 'content/nim/**'
	- 'content/p2p/**'
	- 'content/rfc/**'
	- 'content/sc/**'
	- 'content/sec/**'
	- 'content/bi/**'
	- 'content/web/**'
	- 'tools/roadmap_validator/**'
	- '.github/workflows/roadmap-validator.yml'

	jobs:
	validate:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.x'

	- name: Install dependencies
	run: pip install --disable-pip-version-check --no-cache-dir pyyaml

	- name: Detect changed markdown files
	if: ${{ github.event_name != 'workflow_dispatch' }}
	id: changed-files
	uses: tj-actions/changed-files@v42
	with:
	files: \|
	*/.md

	- name: Run roadmap validator
	run: \|
	set -eo pipefail

	if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
	TARGETS="${{ github.event.inputs.paths }}"
	else
	TARGETS="${{ steps.changed-files.outputs.all_changed_files }}"
	if [ -z "$TARGETS" ]; then
	echo "No roadmap markdown changes detected."
	exit 0
	fi
	fi

	echo "Validating targets:"
	printf '%s\n' $TARGETS
	python tools/roadmap_validator/validate.py $TARGETS

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