chore: merge develop preserving documentation structure and console UX

Integrate develop at 523bade3 while retaining concise agent guidance, rustdoc-owned design rationale, and current console history/rewind behavior. Adapt incoming tests to public entry-ID rewind and synchronize OpenAPI/TypeScript artifacts.

Validation: default-member cargo test --all-features (4936 passed, 23 ignored), root cargo check, all-feature rustdoc with broken links denied, format/diff/name guards, OpenAPI and 11 TypeScript freshness checks. Web: 613 unit, 327 component, 7 Ticket browser and 3 Console browser tests; check/build passed. Merged-state Ticket visual review at 1440/768/390px in light/dark; no matching pre-merge image baseline. E2E/live-provider checks not run.

crates/session-store/src/history.rs

@@ -67,6 +67,8 @@ pub enum LoggedSessionHistoryOrigin {
     ToolOutput {
         worker: LoggedWorkerSubject,
     },
+    /// Host-produced opening context summary; not auto-read or TaskStore material.
+    CompactionSummary,
     DerivedSummary,
     LegacyUnknown,
 }

crates/session-store/src/public_snapshot.rs

@@ -1888,7 +1888,8 @@ fn provenance(origin: &LoggedSessionHistoryOrigin) -> SessionEntryProvenance {
         }
         LoggedSessionHistoryOrigin::ModelOutput { .. } => SessionEntryProvenance::ModelOutput,
         LoggedSessionHistoryOrigin::ToolOutput { .. } => SessionEntryProvenance::ToolOutput,
-        LoggedSessionHistoryOrigin::DerivedSummary => SessionEntryProvenance::DerivedSummary,
+        LoggedSessionHistoryOrigin::CompactionSummary
+        | LoggedSessionHistoryOrigin::DerivedSummary => SessionEntryProvenance::DerivedSummary,
         LoggedSessionHistoryOrigin::LegacyUnknown => SessionEntryProvenance::LegacyUnknown,
     }
 }
@@ -2559,6 +2560,12 @@ mod tests {
                 user_message(10),
                 assistant_message(10, "final"),
                 synthetic_compaction_input,
+                history_message(
+                    "host-summary",
+                    LoggedRole::System,
+                    "[Compacted context summary]\n\nprivate inherited context",
+                    LoggedSessionHistoryOrigin::CompactionSummary,
+                ),
             ],
             None,
             Some(SegmentOrigin {