feat(basecamp-project): add launch workflow skill

skills/basecamp-project/references/organization-template.md

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+# Organization Template Reference
+
+## Default Strategy
+
+Use the configured organization project template as the default way to create Basecamp projects. This keeps project structure, communication materials, and Docs & Files organization consistent across projects.
+
+If the organization template cannot be used, a blank Basecamp project is allowed as an explicit fallback after the user confirms that choice.
+
+## Configurable Template State
+
+- Template ID: not-configured
+- Template name: organization-project-template
+- Source template language: German
+- Basecamp account: use active CLI account unless user specifies another
+
+## Template Selection
+
+When the Template ID is `not-configured`, ask the user for one of these decisions before constructing the project:
+
+1. Provide the Basecamp template ID for `organization-project-template`.
+2. Confirm that the project should be created as a blank Basecamp project instead.
+
+Use the active Basecamp CLI account unless the user specifies a different Basecamp account.
+
+## Construction Command
+
+Construct a project from the organization template with:
+
+```bash
+basecamp templates construct <template_id> \
+  --name "<project name>" \
+  --desc "<project description>" \
+  --json
+```
+
+The angle-bracket values in the command are argument placeholders to replace at execution time with the selected template ID, project name, and project description.
+
+Use the resulting JSON output as the authoritative source for the created project identifiers and URLs.
+
+## Source Communication Templates
+
+Use `Docs & Files → Vorlagen` in the German source template as the source of project communication templates.
+
+## Target-Language Rule
+
+The source template language is German, but final project content must always be written in the user-selected project language. Translate, adapt, and complete communication materials so the finished project reads naturally in that target language.
+
+## Missing Vorlagen Rule
+
+If `Docs & Files → Vorlagen` is missing or does not contain the needed project communication templates, ask the user to choose exactly one path:
+
+1. Stop project construction and fix the template or project structure before continuing.
+2. Use a generic fallback communication template suitable for the project type and target language.
+3. Use a template supplied directly by the user.