Document current coding-workflow stack state

Snapshot of where opencode + Qwen3-Coder + MCPs + Kimi-Linear + voice
  + Phoenix tracing land today, plus in-flight (oc-tree, kimi-linear
  context ramp) and next (ComfyUI) items with pointers to per-project
  NEXT_STEPS.md guides.

oc-tree/pyproject.toml

@@ -0,0 +1,21 @@
+[project]
+name = "oc-tree"
+version = "0.0.1"
+description = "Live tree-view sidecar for opencode SSE events"
+requires-python = ">=3.11"
+dependencies = [
+    "textual>=0.80",
+    "httpx>=0.27",
+    "httpx-sse>=0.4",
+]
+
+[project.scripts]
+oc-tree = "oc_tree.__main__:main"
+oc-tree-probe = "oc_tree.probe:main"
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/oc_tree"]