feat: checkpoint distributed gguf runtime stories

packages/node/native/llama/README.md

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+# Pinned llama.cpp source dependency
+
+This directory keeps the llama.cpp fork boundary explicit and auditable.
+
+Layout:
+
+- `UPSTREAM_COMMIT` - the exact pinned commit.
+- `UPSTREAM_REPOSITORY` - the reproducible source dependency URL.
+- `UPSTREAM_ASSUMPTIONS.md` - the file/ABI assumptions that the build scripts
+  validate.
+- `patches/` - numbered patch files applied on top of the pinned checkout.
+
+The intended flow is:
+
+1. Fetch or clone the pinned upstream checkout.
+2. Verify the checkout commit matches `UPSTREAM_COMMIT`.
+3. Check and apply the numbered patch stack.
+4. Build the worker scaffold from `examples/meshnet-worker/`.
+5. Copy the upstream `LICENSE` and `AUTHORS` files into the worker build tree so
+   the attribution notices remain attached to the built artifact.
+
+The patch stack in this story is intentionally minimal. It creates the project
+worker scaffold and the smoke-test CMake target without pulling Meshnet
+networking code into llama.cpp.