feat!: installation only from a release, into an empty folder; upstream merge/verify and private-instance.md removed, dist adopt, shell-neutral instructions (#153)

Files changed:
- .gitea/workflows/ci.yml
- .gitea/workflows/release.yml
- AGENTS.md
- CHANGES.md
- DEVELOPMENT.md
- EVALS.md
- INSTALL.md
- README.md
- VERSION
- docs/ownership-and-templates.md
- instructions/CONTRACT.md
- instructions/bootstrap.md
- instructions/dev/dev-setup.md
- instructions/dev/stack-dev/SKILL.md
- instructions/gates.md
- instructions/ingest-large-tree.md
- instructions/kb-profiles.md
- instructions/mcp-read-server.md
- instructions/migrations/3.0.0-authoring-conventions.md
- instructions/preflight.md
- instructions/private-instance.md
- instructions/session-setup.md
- instructions/setup-instance.md
- instructions/upgrade-instance.md
- tools/CONTRACT.md
- tools/README.md
- tools/chemenu/cli.py
- tools/chemenu/cli_contract.py
- tools/chemenu/commands/dist_cmd.py
- tools/chemenu/commands/docs_verify.py
- tools/chemenu/commands/doctor.py
- tools/chemenu/commands/git_publish.py
- tools/chemenu/commands/upstream_cmd.py
- tools/chemenu/commands/work_cmd.py
- tools/chemenu/config.py
- tools/chemenu/ownership.py
- tools/chemenu/tests/test_cli.py
- tools/chemenu/tests/test_dist_cmd.py
- tools/chemenu/tests/test_instructions_shell.py
- tools/chemenu/tests/test_preflight.py
- tools/chemenu/tests/test_preflight_pwsh.py
- tools/chemenu/tests/test_run_budget.py
- tools/chemenu/tests/test_upstream_cmd.py
- tools/chemenu/toc.py
- tools/preflight.ps1
- tools/preflight.sh

EVALS.md

@@ -232,14 +232,14 @@ same question the same way:
 | Installation form | Default | Marker |
 |---|---|---|
 | Git clone of this repo (dev checkout) | **on** (opt-out) | No `.wikitool-release.json` |
-| `dist export` tarball (a distributed instance) | **off** (opt-in) | `.wikitool-release.json` present |
+| An instance installed from a release, and every clone of its own repository | **off** (opt-in) | `.wikitool-release.json` present |
 
 The form is read off `.wikitool-release.json`, the same stamp `version check`, `dist upgrade` and
 `version notes` already use to tell a distribution from the repo it came from - present means an operator never
 asked for telemetry, absent means this is the dev checkout the stack ships from, where the traces
-are its own measuring instrument (the rest of this file). A private instance
-(`instructions/private-instance.md`) is a git clone of an *export*, so it carries the stamp and
-defaults off too - it is a consuming instance, not a measuring stand.
+are its own measuring instrument (the rest of this file). An instance commits the stamp with its
+first `publish`, so a clone of it on a second machine carries the stamp and defaults off too - it
+is a consuming instance, not a measuring stand.
 
 **Turning it on for a distributed instance** is a per-checkout `.wikitool-telemetry.json` at the
 repo root, gitignored like `.wikitool-remotes.json` and for the same reason: the consent to write