chore(workspace): gate dead-code with knip production mode (#196)

* refactor(workspace): relocate @ktx/llm source into packages/cli/src/llm

* refactor(workspace): rewrite @ktx/llm imports to relative paths

* refactor(workspace): fold internal packages into cli

* chore(workspace): gate dead-code with knip production mode

Turn on production-mode knip plus an autofix run in pre-commit and the
`pnpm dead-code` script, document the `/** @internal */` convention for
test-only exports in AGENTS.md, annotate test-only exports across the
CLI with that JSDoc, and drop dead exports/wrappers the new gate
surfaced (e.g. `cli-project.ts`, `lookerRuntimeSourceToFileAdapterSource`,
`createLocalScanEnrichmentProvidersFromConfig`,
`PGLITE_OWNER_PROCESS_BACKEND_CAPABILITIES`, stale type re-exports).
Replace the loose `ignoreIssues` allowlist in `knip.json` with explicit
production entries so cross-package barrel leaks are caught.

* refactor(cli): delete internal barrel index.ts files

The 34 `index.ts` re-export barrels inside `packages/cli/src/` were
holdovers from the pre-fold multi-workspace structure. Post-fold-in they
served no production purpose: external consumers go through the single
package main entry, and in-repo callers mostly imported through them
only because the path was short. Internally, knip flagged most barrel
re-exports as production-dead (only reached via tests).

This change:
- Deletes every internal barrel except `packages/cli/src/index.ts`
  (the published package entry).
- Rewrites ~270 source/test files to import each name directly from
  the file that defines it.
- Moves `tools/warehouse-verification/index.ts` to
  `create-warehouse-verification-tools.ts` (the function it defined
  locally) and updates its single consumer.
- Renames `search/backend-conformance.ts` → `.test-utils.ts` to match
  the existing test-helper file convention.
- Deletes 13 dead test-only chains (dbt-descriptions/*,
  live-database/extracted-schema, live-database/structural-sync,
  relationship-* feedback/review chain) plus their tests and a
  cascading orphan integration test.
- Updates test mocks that pointed at deleted barrel paths
  (notion-client, connector barrels in scan/local-scan-connectors
  tests) to mock the source files instead.
- Points the maintainer benchmark script
  (`scripts/relationship-benchmark-report.mjs`) at source files
  instead of `dist/context/scan/index.js`.
- Drops the barrel `!` entries from `knip.json`; adds explicit
  production entries only for the benchmark code reached via dist by
  the maintainer script.

Net: 413 files changed, ~1.2k insertions, ~9.4k deletions.

`pnpm run dead-code` (Biome + knip default + knip production) and
`pnpm run type-check` are clean; 2277 tests pass.

* refactor(workspace): rename @ktx/cli to @kaelio/ktx and pack it directly

Promote the CLI workspace package to the public name `@kaelio/ktx` and
drop the separate `scripts/build-public-npm-package.mjs` wrapper. The
CLI package is now publishable in place (`publishConfig.access: public`,
`provenance: true`), so artifact packing uses `pnpm pack` against
`packages/cli/` instead of assembling a parallel package tree.

Updates all workspace filter invocations, docs, tests, and release
readiness checks to reference the new package name, and folds the
tarball-name helper into `scripts/public-npm-release-metadata.mjs`.

* docs: align "agent clients" and "data agents" terminology

Replace "client agents" with "agent clients" and "database agents" with
"data agents" across AGENTS.md, README.md, the docs-site copy, and the
matching setup-agents test description, matching the canonical
vocabulary in docs/terminology.md.

Also moves packages/cli/tsconfig.json's tsBuildInfoFile from
node_modules/.cache/ to dist/.tsbuildinfo so incremental builds survive
node_modules reinstalls.

* refactor(release): single source of truth for package version

Make packages/cli/package.json the single source of truth for the
@kaelio/ktx version. publicNpmPackageVersion() now reads it directly,
so artifact filenames, release-readiness checks, and the Python wheel
version all derive from one field. The duplicate
release-policy.json.publicNpmPackageVersion is removed.

Previously the two fields could drift: tarballs were named
kaelio-ktx-0.4.1.tgz while internally containing
@kaelio/ktx@0.0.0-private.

- update-public-release-version.mjs rewrites both Python pyproject.toml
  files (ktx-daemon, ktx-sl) alongside the npm package.jsons,
  normalizing the version for PEP 440 (e.g. 0.1.0-rc.2 -> 0.1.0rc2).
- semantic-release-config.cjs adds the two pyproject.toml files to
  @semantic-release/git assets so the release commit back to main
  carries every version source in lockstep.
- The six "?? '0.0.0-private'" fallback literals across the CLI are
  replaced with "?? getKtxCliPackageInfo().version", and
  createDefaultKtxMcpServer makes its version arg required.
- docs/release.md describes the actual commit-back model: the dev tree
  always reflects the most recent release; no sentinel pin to
  maintain.

Verified: pnpm run artifacts:build now produces
kaelio-ktx-0.4.1.tgz and kaelio_ktx-0.4.1-py3-none-any.whl with
@kaelio/ktx@0.4.1 inside. Full type-check, dead-code, and
2287 vitests + 173 script tests pass.

* refactor(cli): inject embedding provider resolution and detect sentence-transformers runtime

Make resolveProjectEmbeddingProvider and runtimeIo injectable in ingest and
scan command entrypoints so tests can stub them, and teach
resolvePublicIngestRuntimeRequirements to flag the local-embeddings runtime
feature when ktx.yaml selects sentence-transformers.

* chore(cli): mark buildLocalStatsStatus and LocalStatsStatus as @internal

Both symbols are consumed only by status-project.test.ts. Annotating with
/** @internal */ keeps knip's production-mode check clean without changing
runtime behavior.

* fix(cli): use real package metadata in print-command-tree

The stubbed package name embedded a forbidden product identifier that
tripped the boundary check in CI. Read the metadata from package.json
instead — keeps the rendered tree unchanged and removes a duplicate
source of truth.

* feat(cli): show embedding coverage in `ktx status`, drop duplicate disk counts

Inline `(N embedded)` next to the Wiki scope counts and Semantic-layer
source counts, computed with `SUM(embedding_json IS NOT NULL)` over
`knowledge_pages` and `local_sl_sources`. Rename the "Knowledge" label to
"Wiki" (canonical per `docs/terminology.md`) and rename the matching
`localStats.knowledgePages` field to `localStats.wikiPages`.

Drop `wiki=N md` and `semantic-layer=N yaml` from the Disk row — those
duplicated the per-surface rows above. Disk now reports only actual byte
usage (db, cache, raw-sources). The unused `wikiGlobalMarkdownCount` /
`semanticLayerYamlCount` fields, the `isMarkdownEntry` / `isYamlEntry`
helpers, and the `filter` arg on `summarizeDir` are removed.

scripts/update-public-release-version.mjs

@@ -8,6 +8,7 @@ import {
   PUBLIC_NPM_PACKAGE_NAME,
   assertPublicNpmPackageVersion,
   assertPublicNpmReleaseTag,
+  publicNpmPackageVersionToPythonVersion,
   releasePolicyPath,
 } from './public-npm-release-metadata.mjs';
 
@@ -23,6 +24,42 @@ async function writeJson(path, value) {
   await writeFile(path, `${JSON.stringify(value, null, 2)}\n`);
 }
 
+function pyprojectWithProjectVersion(source, version) {
+  const lines = source.split('\n');
+  let inProject = false;
+  let replaced = false;
+  for (let index = 0; index < lines.length; index += 1) {
+    const line = lines[index];
+    const sectionMatch = /^\s*\[([^\]]+)\]\s*$/.exec(line);
+    if (sectionMatch) {
+      inProject = sectionMatch[1] === 'project';
+      continue;
+    }
+    if (inProject && /^\s*version\s*=\s*"[^"]*"\s*$/.test(line)) {
+      lines[index] = `version = "${version}"`;
+      replaced = true;
+      break;
+    }
+  }
+  if (!replaced) {
+    throw new Error('No [project].version assignment found in pyproject.toml');
+  }
+  return lines.join('\n');
+}
+
+async function rewritePyprojectVersion(path, version) {
+  const source = await readFile(path, 'utf8');
+  await writeFile(path, pyprojectWithProjectVersion(source, version));
+}
+
+function safePythonVersionFor(version) {
+  try {
+    return publicNpmPackageVersionToPythonVersion(version);
+  } catch {
+    return null;
+  }
+}
+
 export async function updatePublicReleaseVersion(rootDir, version, tag) {
   const safeVersion = assertPublicNpmPackageVersion(version);
   const safeTag = assertPublicNpmReleaseTag(tag);
@@ -37,9 +74,15 @@ export async function updatePublicReleaseVersion(rootDir, version, tag) {
   cliPackageJson.version = safeVersion;
   await writeJson(cliPackageJsonPath, cliPackageJson);
 
+  const pythonVersion = safePythonVersionFor(safeVersion);
+  if (pythonVersion !== null) {
+    await rewritePyprojectVersion(join(rootDir, 'python', 'ktx-daemon', 'pyproject.toml'), pythonVersion);
+    await rewritePyprojectVersion(join(rootDir, 'python', 'ktx-sl', 'pyproject.toml'), pythonVersion);
+  }
+
   const policyPath = releasePolicyPath(rootDir);
   const policy = await readJson(policyPath);
-  policy.publicNpmPackageVersion = safeVersion;
+  delete policy.publicNpmPackageVersion;
   policy.releaseMode = 'npm-public-release-ready';
   policy.requiredBeforePublishing = [];
   policy.npm = {
@@ -60,6 +103,7 @@ export async function updatePublicReleaseVersion(rootDir, version, tag) {
   return {
     version: safeVersion,
     tag: safeTag,
+    pythonVersion,
   };
 }