chore: migrate rexec configuration to v0.2.0 schema 1

.rexec.toml

@@ -0,0 +1,78 @@
+# rexec repository configuration (.rexec.toml), committed with the repository.
+#
+# Schema-1 migration of this repository's full effective v0.1.3 configuration
+# (rexec v0.2.0 cutover, 2026-08-10). Deliberate changes from v0.1.3 are
+# recorded in the release evidence under remote-execution
+# docs/evidence/rexec-v0.2/.
+
+schema = 1
+
+[remote]
+
+# Effective v0.1.3 host: "rexec", set explicitly by the user-level [default] table
+# and identical to the v0.1.3 compiled default. schema 1 has no default for it, so
+# it must be declared here.
+host = "rexec"
+
+[tools]
+
+# Migrates the v0.1.3 [provision.tools.go] probe ("go version"), which declared
+# no version. The exact version is derived from this repository's own source of
+# truth, the go.mod toolchain directive, and is declared unqualified because go
+# is one of the pinned mise release's core names.
+go = "1.26.5"
+
+[env]
+
+# Carried over verbatim from the effective v0.1.3 [env] table. The
+# "{remote_cache}" placeholder is still a schema-1 surface and is still expanded
+# at activation time against the worker-reported cache root, so the value keeps
+# the interpreter environment outside the disposable worktree exactly as before.
+UV_PROJECT_ENVIRONMENT = "{remote_cache}/python-env"
+
+[provision.debian]
+
+# The full effective v0.1.3 Debian package list, in effective order: the
+# user-level baseline followed by this repository's own additions, unioned exactly
+# as the released Load did. schema 1 has no user layer, so the whole list is
+# restated here to keep `rexec setup` converging exactly what it converged before.
+packages = [
+  "rsync",
+  "git",
+  "git-lfs",
+  "make",
+  "build-essential",
+  "pkg-config",
+  "cmake",
+  "ninja-build",
+  "curl",
+  "ca-certificates",
+  "jq",
+  "sqlite3",
+  "unzip",
+  "zip",
+  "xz-utils",
+  "shellcheck",
+  "shfmt",
+  "ripgrep",
+  "python3-dev",
+  "python3-venv",
+  "libffi-dev",
+  "libssl-dev",
+  "zlib1g-dev",
+  "libbz2-dev",
+  "liblzma-dev",
+  "libsqlite3-dev",
+  "libreadline-dev",
+  "libyaml-dev",
+  "libjpeg-dev",
+  "libfreetype-dev",
+  "libpng-dev",
+  "libxml2-dev",
+  "libxslt1-dev",
+  "libpq-dev",
+  "default-libmysqlclient-dev",
+  "libopenblas-dev",
+  "liblapack-dev",
+  "gfortran",
+]