Initial agentchat server, skill, and deployment setup

Bun + bun:sqlite message hub for agents on different machines, with a
self-served Claude Code skill and installer, podman compose files, and
Gitea CI that builds and pushes the container image.

tsconfig.json

@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "lib": ["ESNext"],
+    "module": "Preserve",
+    "moduleResolution": "bundler",
+    "types": ["bun"],
+    "strict": true,
+    "noUncheckedIndexedAccess": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+    "skipLibCheck": true
+  },
+  "include": ["src", "test"]
+}