fix: remove one machine's addresses and paths from the shipped defaults

The plugin was developed against an Ollama on a private LAN address, and that
address had reached places that ship:

- the `config` parameter description the MODEL reads on every request;
- the commented example in `cordis.patch.yml`, the layer every profile applies;
- `scripts/smoke.mjs` and `scripts/measure.mjs` endpoint defaults;
- both measure scripts' default workspace, which was an absolute local path
  and named a private repository;
- README examples and test fixtures.

All of them now use `http://127.0.0.1:11434`, which is Ollama's documented
default and belongs to no particular machine — kept rather than emptied because
`validateSettings` requires an http(s) URL, so an empty default would turn every
call into INVALID_SETTINGS until someone configured it. Test fixtures use
192.0.2.10 instead: TEST-NET-1 is reserved for documentation and cannot point at
a host anybody runs. The `focus` and `config` examples are generic, and the
workspace defaults are the working directory.

Two script bugs surfaced once the defaults stopped pointing at a live box, and
are fixed here. `measure.mjs` built its own configuration literal, which was ten
fields short of the schema — harmless while nothing validated it, and a refused
call the moment `execute` began checking the section it was handed; it now
resolves its configuration through the plugin's own `Config`, so it cannot drift
again. It also crashed on a failed search (`first.index.scanned` of a result
that has no index) instead of reporting the endpoint it could not reach, which
is now the ordinary case. `scope-measure.mjs` divided by a scope that does not
exist in any workspace without focus markers, and now says so.

Also corrects `cordis.patch.yml`'s description of what the row registers: in
0.1.7 the exported `Config` is the settings registration, not a namespace on
`ctx.settings`.

scripts/measure.mjs

@@ -19,38 +19,37 @@ import { mkdtemp, rm } from 'node:fs/promises'
 import { tmpdir } from 'node:os'
 import { join } from 'node:path'
 
-import { apply } from '../index.js'
+import { apply, Config, settingsSnapshot } from '../index.js'
 
-const WORKSPACE = process.argv[2] ?? '/root/workspaces/ha-runtime'
-const QUERY = process.argv[3] ?? 'how does the occupancy state machine decide a room is occupied'
+// Whatever repository you run this against, and whatever you want to ask it.
+// The defaults are the working directory and a query that names a behaviour
+// rather than a symbol — which is the kind of question the plugin exists for.
+const WORKSPACE = process.argv[2] ?? process.cwd()
+const QUERY = process.argv[3] ?? 'where is the retry policy applied'
 const BUDGET_MS = Number(process.argv[4] ?? 90_000)
 
-const API_BASE = process.env.RECALL_API_BASE ?? 'http://10.50.1.2:11434'
+// The endpoint to measure against: the Ollama convention unless RECALL_API_BASE
+// says otherwise. Nothing here is specific to the machine this was written on.
+const API_BASE = process.env.RECALL_API_BASE ?? 'http://127.0.0.1:11434'
 const MODEL = process.env.RECALL_MODEL ?? 'unclemusclez/jina-embeddings-v2-base-code:latest'
 
-const config = {
-  embeddingApiBase: API_BASE,
-  embeddingModel: MODEL,
-  embeddingDimensions: 768,
-  embeddingApiKey: '',
-  embeddingBatchSize: 32,
-  embeddingConcurrency: 4,
-  embeddingTimeoutMs: 120_000,
-  extensions: [],
-  exclude: [],
-  maxFiles: 20_000,
-  maxFileBytes: 1_048_576,
-  chunkLines: 48,
-  maxChunkLines: 80,
-  overlapLines: 8,
-  defaultLimit: 8,
-  maxLimit: 25,
-  perFileLimit: 2,
-  excerptLines: 40,
-  minSimilarity: 0.2,
-  syncBudgetMs: BUDGET_MS,
-  stateDir: '',
-}
+// The measurement's configuration, stated as the few values it cares about and
+// resolved through the plugin's own schema — so this script can never drift
+// from the Config the plugin validates against. A hand-written literal used to
+// stand here, and it was missing ten fields: harmless while nothing checked,
+// and a refused call the moment `execute` began validating the section it was
+// handed.
+const config = settingsSnapshot(
+  Config({
+    embeddingApiBase: API_BASE,
+    embeddingModel: MODEL,
+    embeddingBatchSize: 32,
+    embeddingConcurrency: 4,
+    embeddingTimeoutMs: 120_000,
+    excerptLines: 40,
+    syncBudgetMs: BUDGET_MS,
+  }),
+)
 
 /** The smallest context `apply` touches, with no settings provider mounted. */
 function context() {
@@ -92,6 +91,21 @@ async function main() {
   const coldMs = Date.now() - coldStart
   console.log('--- FIRST SEARCH (bounded cold start) ---')
   console.log(`elapsed        : ${(coldMs / 1000).toFixed(1)}s  (budget ${BUDGET_MS / 1000}s)`)
+
+  // A search that did not run has no index or results to report, and the tool
+  // already says why. Without this the first `first.index.*` line throws a
+  // TypeError that buries the actual cause — an endpoint that is not there is
+  // the ordinary case now that the default is the loopback convention.
+  if (first.ok !== true) {
+    console.log(`failed         : ${first.errorCode ?? 'UNKNOWN'}`)
+    console.log(`note           : ${first.note ?? '(none)'}`)
+    if (first.remedy !== undefined) console.log(`remedy         : ${first.remedy}`)
+    console.log('')
+    console.log(`nothing to measure: point RECALL_API_BASE at a reachable endpoint (currently ${API_BASE}).`)
+    process.exitCode = 1
+    return
+  }
+
   console.log(`scanned files  : ${first.index.scanned}`)
   console.log(`indexed files  : ${first.index.files}`)
   console.log(`chunks         : ${first.index.chunks}`)