docs(.profile): initial organization profile

Adds the README.md that serves as the Einherjar framework's landing page
on the Gitea organization.

Covers the framework name and mythology, the 14-module inventory with
dependency relationships, the ASCII dependency graph, the contracts
governance law, and the "for those who come after" philosophy section.

.gitignore

@@ -0,0 +1,14 @@
+# ── Release workflow helpers ──────────────────────────────────────────────────
+COMMIT.md
+PR.md
+
+# ── OS artifacts ─────────────────────────────────────────────────────────────
+.DS_Store
+Thumbs.db
+
+# ── Editor artifacts ──────────────────────────────────────────────────────────
+.idea/
+.vscode/
+*.swp
+*.swo
+*~