🏗️ refactor(kebab-app): promote error_classify → kebab-app::error_wire (fb-30 prep)

fb-30 의 새 crate `kebab-mcp` 가 동일 classify 모듈 사용 — UI crate 끼리
import 는 facade rule 위반이므로 kebab-app 으로 promotion. fb-27 commit
c91228e 의 코드 그대로 이전 (struct + classify + classify_llm + 7 unit
test). reqwest dev-dep 도 함께 이동.

kebab-cli 는 `kebab_app::ErrorV1` / `kebab_app::classify` 로 import 경로
1줄 변경 + wire.rs 의 `&crate::error_classify::ErrorV1` 1줄 교체. 동작
무영향.

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

Cargo.lock

@@ -3516,6 +3516,7 @@ dependencies = [
  "kebab-store-vector",
  "lopdf",
  "lru",
+ "reqwest",
  "rusqlite",
  "serde",
  "serde_json",
@@ -3558,7 +3559,6 @@ dependencies = [
  "kebab-core",
  "kebab-eval",
  "kebab-tui",
- "reqwest",
  "serde",
  "serde_json",
  "tempfile",

crates/kebab-app/Cargo.toml

@@ -64,3 +64,6 @@ image                = { version = "0.25", default-features = false, features =
 # to the same major (0.32) so byte output is identical between the two
 # fixture surfaces.
 lopdf                = "0.32"
+# error_wire::tests::llm_unreachable_classifies_to_model_unreachable needs a real
+# reqwest::Error (private constructor) — built from a connect-refused call.
+reqwest      = { version = "0.12", default-features = false, features = ["blocking", "rustls-tls"] }

crates/kebab-app/src/error_wire.rs

@@ -9,7 +9,7 @@
 use serde::{Deserialize, Serialize};
 use serde_json::{Value, json};
 
-use kebab_app::error_signal::{ConfigInvalid, LlmError, NotIndexed};
+use crate::error_signal::{ConfigInvalid, LlmError, NotIndexed};
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct ErrorV1 {

crates/kebab-app/src/lib.rs

@@ -57,6 +57,7 @@ use kebab_source_fs::FsSourceConnector;
 mod app;
 pub mod doctor_signal;
 pub mod error_signal;
+pub mod error_wire;
 pub mod ingest_progress;
 pub mod logging;
 pub mod reset;
@@ -65,6 +66,7 @@ pub mod schema;
 pub use app::App;
 pub use ingest_progress::{AggregateCounts, IngestEvent, render_skipped_breakdown};
 pub use reset::{ResetReport, ResetScope};
+pub use error_wire::{ErrorV1, classify};
 pub use schema::{Capabilities, Models, SCHEMA_V1_ID, SchemaV1, Stats, WireBlock, schema_with_config};
 
 /// p9-fb-25: sentinel for files without an extension in

crates/kebab-cli/Cargo.toml

@@ -44,6 +44,3 @@ ctrlc        = "3"
 
 [dev-dependencies]
 tempfile     = { workspace = true }
-# llm_unreachable_classifies_to_model_unreachable test needs a real
-# reqwest::Error (private constructor) — built from a connect-refused call.
-reqwest      = { version = "0.12", default-features = false, features = ["blocking", "rustls-tls"] }

crates/kebab-cli/src/main.rs

@@ -9,7 +9,6 @@ use clap::{Parser, Subcommand};
 use kebab_app::doctor_signal::{DoctorUnhealthy, NoHitSignal, RefusalSignal};
 
 mod cancel;
-mod error_classify;
 mod progress;
 mod wire;
 
@@ -282,7 +281,7 @@ fn main() -> ExitCode {
             // caller); errors go to stderr.
             if code != 1 {
                 if cli.json {
-                    let v1 = error_classify::classify(&e, cli.verbose);
+                    let v1 = kebab_app::classify(&e, cli.verbose);
                     let v = wire::wire_error_v1(&v1);
                     eprintln!("{}", serde_json::to_string(&v).unwrap_or_else(|_| {
                         "{\"schema_version\":\"error.v1\",\"code\":\"generic\",\"message\":\"serialize failed\"}".to_string()

crates/kebab-cli/src/wire.rs

@@ -152,12 +152,12 @@ pub fn wire_schema(s: &kebab_app::SchemaV1) -> Value {
     tag_object(v, kebab_app::SCHEMA_V1_ID)
 }
 
-/// Wrap an [`crate::error_classify::ErrorV1`] as `error.v1`.
+/// Wrap an [`kebab_app::ErrorV1`] as `error.v1`.
 ///
 /// Uses the simple `tag_object` pattern because `ErrorV1` is a
-/// kebab-cli-local type that does NOT carry `schema_version` itself
+/// type that does NOT carry `schema_version` itself
 /// (kebab-core convention).
-pub fn wire_error_v1(e: &crate::error_classify::ErrorV1) -> Value {
+pub fn wire_error_v1(e: &kebab_app::ErrorV1) -> Value {
     let v = serde_json::to_value(e).expect("ErrorV1 serializes");
     tag_object(v, "error.v1")
 }
@@ -262,7 +262,7 @@ mod tests {
 
     #[test]
     fn error_wrapper_tags_schema_version_and_emits_code() {
-        use crate::error_classify::ErrorV1;
+        use kebab_app::ErrorV1;
         let err = ErrorV1 {
             code: "config_invalid".to_string(),
             message: "bad config".to_string(),