Add BMAD planning artifacts: brief, PRD, architecture, UX, spec, tickets

Includes the BMAD install config, the initiative ticket tree, the portal
context-resources scripts, and the .gitignore change that tracks BMAD files
(generated _bmad/render/ is ignored).

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Sk72AxLwQnYttF6VFSxQLt

_bmad-output/initiative-ping-mee-portal/tickets.toml

@@ -0,0 +1,21 @@
+# Epics of the initiative, in build order.
+
+[[epic]]
+id = 1
+slug = "epic-platform-and-sign-in"
+title = "A user can sign in to the live portal"
+covers = ["CAP-1", "CAP-9"]
+
+[[epic]]
+id = 2
+slug = "epic-account-self-service"
+title = "A user manages their own account"
+covers = ["CAP-2", "CAP-3", "CAP-4"]
+after = [{ epic = 1, needs = "sign-in and sessions, the directory adapter, throttling, the audit service and the mail outbox" }]
+
+[[epic]]
+id = 3
+slug = "epic-announcements-and-administration"
+title = "The admin announces changes and runs the portal"
+covers = ["CAP-5", "CAP-6", "CAP-7", "CAP-8", "CAP-10"]
+after = [{ epic = 2, needs = "the profile and picture data the dashboard account card shows" }]