feat(kebab-core): p9-fb-23 task 1 — IngestItemKind::Unchanged + IngestReport.unchanged

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/kebab-app/src/ingest_progress.rs

@@ -28,6 +28,10 @@ pub struct AggregateCounts {
     pub new: u32,
     pub updated: u32,
     pub skipped: u32,
+    /// p9-fb-23: assets whose checksum + all version inputs matched the
+    /// existing DB record — parse / chunk / embed / vector upsert all
+    /// skipped.
+    pub unchanged: u32,
     pub errors: u32,
     pub chunks_indexed: u32,
     pub embeddings_indexed: u32,

crates/kebab-app/src/lib.rs

@@ -347,6 +347,7 @@ pub fn ingest_with_config_cancellable(
     let mut new_count: u32 = 0;
     let mut updated_count: u32 = 0;
     let mut skipped_count: u32 = 0;
+    let mut unchanged_count: u32 = 0;
     let mut error_count: u32 = 0;
     // Aggregate counts surfaced into `ingest_runs` (and tracing). Not
     // exposed on `IngestReport` today — `kebab_core::IngestReport` is a
@@ -445,6 +446,9 @@ pub fn ingest_with_config_cancellable(
             kebab_core::IngestItemKind::Skipped => {
                 skipped_count = skipped_count.saturating_add(1)
             }
+            kebab_core::IngestItemKind::Unchanged => {
+                unchanged_count = unchanged_count.saturating_add(1)
+            }
             kebab_core::IngestItemKind::Error => {
                 error_count = error_count.saturating_add(1)
             }
@@ -585,6 +589,7 @@ pub fn ingest_with_config_cancellable(
         new: new_count,
         updated: updated_count,
         skipped: skipped_count,
+        unchanged: unchanged_count,
         errors: error_count,
         chunks_indexed,
         embeddings_indexed,
@@ -626,6 +631,7 @@ pub fn ingest_with_config_cancellable(
         new: new_count,
         updated: updated_count,
         skipped: skipped_count,
+        unchanged: unchanged_count,
         errors: error_count,
         duration_ms,
         items: if summary_only { None } else { Some(items) },

crates/kebab-core/src/ingest.rs

@@ -13,7 +13,11 @@ pub struct IngestReport {
     pub scanned: u32,
     pub new: u32,
     pub updated: u32,
+    /// Media-type / source filter (`kb://`, unsupported types).
     pub skipped: u32,
+    /// p9-fb-23: assets whose checksum + all version inputs matched —
+    /// parse / chunk / embed / vector upsert all skipped.
+    pub unchanged: u32,
     pub errors: u32,
     pub duration_ms: u32,
     /// `None` ↔ wire `items: null` (`--summary-only`).
@@ -40,6 +44,12 @@ pub struct IngestItem {
 pub enum IngestItemKind {
     New,
     Updated,
+    /// Media-type filter / kb:// URI / non-supported source — never made
+    /// it into the parse step.
     Skipped,
+    /// p9-fb-23: blake3 checksum + parser_version + chunker_version +
+    /// embedding_version all matched the existing record. Parse / chunk
+    /// / embed / vector upsert all skipped.
+    Unchanged,
     Error,
 }

crates/kebab-tui/src/ingest_progress.rs

@@ -131,6 +131,9 @@ fn apply_event(state: &mut IngestState, event: IngestEvent) {
                 kebab_core::IngestItemKind::Skipped => {
                     state.counts.skipped = state.counts.skipped.saturating_add(1);
                 }
+                kebab_core::IngestItemKind::Unchanged => {
+                    state.counts.unchanged = state.counts.unchanged.saturating_add(1);
+                }
                 kebab_core::IngestItemKind::Error => {
                     state.counts.errors = state.counts.errors.saturating_add(1);
                 }

docs/wire-schema/v1/ingest_report.schema.json

@@ -11,6 +11,7 @@
     "new",
     "updated",
     "skipped",
+    "unchanged",
     "errors",
     "duration_ms"
   ],
@@ -21,6 +22,11 @@
     "new":            { "type": "integer", "minimum": 0 },
     "updated":        { "type": "integer", "minimum": 0 },
     "skipped":        { "type": "integer", "minimum": 0 },
+    "unchanged": {
+      "type": "integer",
+      "minimum": 0,
+      "description": "p9-fb-23: assets whose checksum + parser_version + chunker_version + embedding_version all matched the existing record. Parse / chunk / embed / vector upsert all skipped."
+    },
     "errors":         { "type": "integer", "minimum": 0 },
     "duration_ms":    { "type": "integer", "minimum": 0 },
     "items":          { "type": ["array", "null"] }