feat(javascript): query retained application facts by exact path (#4265)

Expose exact-path, selected-property, paged reads of retained JavaScript application facts through the shared CLI/MCP analysis view. Preserve original identities, complete row Evidence and partial coverage; retain reproducible real-Joplin and actual-agent measurements, including negative cost results.

Fixes #4190. Part of #4027. Code mode remains deferred by #4091.

Integrate main after #4274. Validation: 114 distinct focused cases across documented invocations, 106 Python cases, full static/docs checks and 18 version-labelled real-application workflows with 9 complete CLI/MCP view parity controls. Preserve two local fixture deadline failures and the unchanged test passing on an available single CPU. Final-head CI passed all 36 jobs after one Windows timeout retry without source changes; both exact-head automated reviews are clear and all review threads resolved. Downloadable apps and raw large Evidence/transcripts are excluded.

Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>

docs/javascript-application-workflows.md

@@ -80,6 +80,65 @@ incompletely analyzed application. CLI `inspect-analysis-view` reads the same
 request from a JSON file; portable input uses `source.kind: "inline"` with the
 complete parent Evidence.
 
+## Retained file and native facts
+
+Read metadata, native inventory and unavailable processing scopes directly from
+retained application observations:
+
+```json
+{
+  "source": {
+    "kind": "retained-evidence",
+    "evidence_id": "ev_ACTUAL_PARENT_ID"
+  },
+  "view": {
+    "kind": "javascript-facts",
+    "where": { "paths": ["package.json", "build/Release/addon.node"] },
+    "property_keys": [
+      "name",
+      "version",
+      "bytes",
+      "availability",
+      "operation",
+      "analysis_status"
+    ],
+    "offset": 0,
+    "limit": 32
+  }
+}
+```
+
+Each row preserves its node identity, observation ID, source-map reference and
+original Evidence, including location, authority, confidence, coverage and
+limitations. `property_keys` selects exact retained property names; absent keys
+stay omitted and retained null values stay null. An empty list requests only
+identity/provenance. Observations are not merged into a single asserted fact.
+When property names are unknown, opt into
+`include_available_property_keys: true`. Each returned row then lists its
+original `available_property_keys`, without unselected values; combine this with
+`property_keys: []` for discovery only. The default is false, so known-field
+reads do not pay for field inventories. Keep node/observation IDs paired when
+combining rows; location-related observations need not belong to the same node.
+
+`where.paths` compares exact Evidence `artifact-path` values or `source-range`
+sources. Empty query strings remain valid selectors, though current location
+contracts require nonempty paths/sources. It does not inspect display labels or a
+property named `path`, normalize URLs, or reopen files. Omission includes unknown
+locations; an empty list matches none. Optional `where.kinds` filters original
+node kinds, with an empty list likewise matching none. Multiple locations of
+shared content remain separate rows with the same canonical node identity.
+
+These rows select application-graph observations. Semantic relationships and
+semantic unknown records remain in complete parent Evidence and trace tools.
+
+Rows follow retained node/observation order. The default offset/limit is 0/64;
+follow `coverage.next_offset`. Page totals count matching retained observations,
+while `source_coverage` preserves caller selection and application/semantic
+partial or unknown states. An empty or exhausted page does not establish absence
+outside examined coverage. Complete source Evidence remains available through
+export. CLI `inspect-analysis-view` and portable Evidence use the same contract
+and application implementation as MCP.
+
 ## Feature tracing
 
 Select one literal seed kind: node ID, route, string, API, IPC channel, module,