feat(cli): implement 'lore file-history' command (bd-z94)

Adds file-history command showing which MRs touched a file, with:
- Rename chain resolution via BFS (resolve_rename_chain from bd-1yx)
- DiffNote discussion snippets with --discussions flag
- --merged filter, --no-follow-renames, -n limit
- Human output with styled MR list and rename chain display
- Robot JSON output with {ok, data, meta} envelope
- Autocorrect registry and robot-docs manifest entry
- Fixes pre-existing --no-status missing from sync autocorrect registry

src/main.rs

@@ -13,23 +13,24 @@ use lore::cli::commands::{
     NoteListFilters, SearchCliFilters, SyncOptions, TimelineParams, open_issue_in_browser,
     open_mr_in_browser, print_count, print_count_json, print_doctor_results, print_drift_human,
     print_drift_json, print_dry_run_preview, print_dry_run_preview_json, print_embed,
-    print_embed_json, print_event_count, print_event_count_json, print_generate_docs,
-    print_generate_docs_json, print_ingest_summary, print_ingest_summary_json, print_list_issues,
-    print_list_issues_json, print_list_mrs, print_list_mrs_json, print_list_notes,
-    print_list_notes_csv, print_list_notes_json, print_list_notes_jsonl, print_search_results,
-    print_search_results_json, print_show_issue, print_show_issue_json, print_show_mr,
-    print_show_mr_json, print_stats, print_stats_json, print_sync, print_sync_json,
-    print_sync_status, print_sync_status_json, print_timeline, print_timeline_json_with_meta,
-    print_who_human, print_who_json, query_notes, run_auth_test, run_count, run_count_events,
-    run_doctor, run_drift, run_embed, run_generate_docs, run_ingest, run_ingest_dry_run, run_init,
-    run_list_issues, run_list_mrs, run_search, run_show_issue, run_show_mr, run_stats, run_sync,
-    run_sync_status, run_timeline, run_who,
+    print_embed_json, print_event_count, print_event_count_json, print_file_history,
+    print_file_history_json, print_generate_docs, print_generate_docs_json, print_ingest_summary,
+    print_ingest_summary_json, print_list_issues, print_list_issues_json, print_list_mrs,
+    print_list_mrs_json, print_list_notes, print_list_notes_csv, print_list_notes_json,
+    print_list_notes_jsonl, print_search_results, print_search_results_json, print_show_issue,
+    print_show_issue_json, print_show_mr, print_show_mr_json, print_stats, print_stats_json,
+    print_sync, print_sync_json, print_sync_status, print_sync_status_json, print_timeline,
+    print_timeline_json_with_meta, print_who_human, print_who_json, query_notes, run_auth_test,
+    run_count, run_count_events, run_doctor, run_drift, run_embed, run_file_history,
+    run_generate_docs, run_ingest, run_ingest_dry_run, run_init, run_list_issues, run_list_mrs,
+    run_search, run_show_issue, run_show_mr, run_stats, run_sync, run_sync_status, run_timeline,
+    run_who,
 };
 use lore::cli::render::{ColorMode, GlyphMode, Icons, LoreRenderer, Theme};
 use lore::cli::robot::{RobotMeta, strip_schemas};
 use lore::cli::{
-    Cli, Commands, CountArgs, EmbedArgs, GenerateDocsArgs, IngestArgs, IssuesArgs, MrsArgs,
-    NotesArgs, SearchArgs, StatsArgs, SyncArgs, TimelineArgs, WhoArgs,
+    Cli, Commands, CountArgs, EmbedArgs, FileHistoryArgs, GenerateDocsArgs, IngestArgs, IssuesArgs,
+    MrsArgs, NotesArgs, SearchArgs, StatsArgs, SyncArgs, TimelineArgs, WhoArgs,
 };
 use lore::core::db::{
     LATEST_SCHEMA_VERSION, create_connection, get_schema_version, run_migrations,
@@ -195,6 +196,9 @@ async fn main() {
             handle_timeline(cli.config.as_deref(), args, robot_mode).await
         }
         Some(Commands::Who(args)) => handle_who(cli.config.as_deref(), args, robot_mode),
+        Some(Commands::FileHistory(args)) => {
+            handle_file_history(cli.config.as_deref(), args, robot_mode)
+        }
         Some(Commands::Drift {
             entity_type,
             iid,
@@ -720,6 +724,7 @@ fn suggest_similar_command(invalid: &str) -> String {
         ("notes", "notes"),
         ("note", "notes"),
         ("drift", "drift"),
+        ("file-history", "file-history"),
     ];
 
     let invalid_lower = invalid.to_lowercase();
@@ -1852,6 +1857,37 @@ async fn handle_stats(
     Ok(())
 }
 
+fn handle_file_history(
+    config_override: Option<&str>,
+    args: FileHistoryArgs,
+    robot_mode: bool,
+) -> Result<(), Box<dyn std::error::Error>> {
+    let start = std::time::Instant::now();
+    let config = Config::load(config_override)?;
+
+    let project = config
+        .effective_project(args.project.as_deref())
+        .map(String::from);
+
+    let result = run_file_history(
+        &config,
+        &args.path,
+        project.as_deref(),
+        args.no_follow_renames,
+        args.merged,
+        args.discussions,
+        args.limit,
+    )?;
+
+    if robot_mode {
+        let elapsed_ms = start.elapsed().as_millis() as u64;
+        print_file_history_json(&result, elapsed_ms);
+    } else {
+        print_file_history(&result);
+    }
+    Ok(())
+}
+
 async fn handle_timeline(
     config_override: Option<&str>,
     args: TimelineArgs,
@@ -2520,6 +2556,16 @@ fn handle_robot_docs(robot_mode: bool, brief: bool) -> Result<(), Box<dyn std::e
                 "active_minimal": ["entity_type", "iid", "title", "participants"]
             }
         },
+        "file-history": {
+            "description": "Show MRs that touched a file, with rename chain resolution and optional DiffNote discussions",
+            "flags": ["<path>", "-p/--project <path>", "--discussions", "--no-follow-renames", "--merged", "-n/--limit <N>"],
+            "example": "lore --robot file-history src/main.rs -p group/repo",
+            "response_schema": {
+                "ok": "bool",
+                "data": {"path": "string", "rename_chain": "[string]?", "merge_requests": "[{iid:int, title:string, state:string, author_username:string, change_type:string, merged_at_iso:string?, updated_at_iso:string, merge_commit_sha:string?, web_url:string?}]", "discussions": "[{discussion_id:string, author_username:string, body_snippet:string, path:string, created_at_iso:string}]?"},
+                "meta": {"elapsed_ms": "int", "total_mrs": "int", "renames_followed": "bool", "paths_searched": "int"}
+            }
+        },
         "drift": {
             "description": "Detect discussion divergence from original issue intent",
             "flags": ["<entity_type: issues>", "<IID>", "--threshold <0.0-1.0>", "-p/--project <path>"],