feat: Add foundational documentation for security, workflow, and project management

- Create SECURITY.md to outline security policies and practices.
- Establish WORKFLOW.md detailing the project lifecycle from planning to retrospective.
- Introduce decision log structure in decisions/README.md for tracking architecture decisions.
- Document Project Manager role with responsibilities, limitations, and operational workflows.
- Implement templates for ADRs, bugs, meetings, projects, retrospectives, RFCs, roadmaps, and sprints.
- Set up memory logs for architecture and company-wide lessons learned.
- Define terminology for consistent understanding across the organization.

templates/PROJECT.md

@@ -0,0 +1,39 @@
+# <Project Name>
+
+**Status:** Planning | Active | Paused | Complete
+**Epic:** link to the Plane Epic this project executes
+**Gitea repo:** `<ORG_NAME>/<repo-name>`
+
+## Summary
+
+One paragraph: what this project is and why it exists. Should trace back to the Founder-approved
+plan that created its Epic (`FOUNDER.md`).
+
+## Scope
+
+What's in. What's explicitly out — scope boundaries matter as much as the goal itself, since
+scope creep inside an approved Epic is one of the things `WORKFLOW.md` asks engineers and the
+Architect to actively watch for.
+
+## Architecture
+
+High-level design. Link out to relevant ADRs (`decisions/`) rather than restating their
+reasoning here — this section should read as a map, not a duplicate of the decision log.
+
+## Roles involved
+
+Which engineering disciplines this project needs (not every project needs all of them) and
+anything project-specific about how they collaborate beyond what `ORGANIZATION.md` already
+covers.
+
+## CI / deployment notes
+
+Anything about this project's ACT Runner configuration or deployment pipeline that goes beyond
+the default in `ACT_RUNNER.md`.
+
+## Status log
+
+Brief dated entries at major milestones — not a duplicate of Plane's burndown, just enough for
+someone reading this file cold to understand the project's trajectory.
+
+- YYYY-MM-DD — <milestone>