feat: turn-level auto-pair so user msg + response delete together

Also: non-interactive CLI (list/show/info/delete with --json) for LLM
agents, and CI fixes (rustfmt, box Screen::Edit, sort_by_key, enumerate).

Author: dudegladiator

README.md

@@ -48,12 +48,43 @@ cc-session --version
 | Key | Action |
 |-----|--------|
 | `j` / `k` | move selection |
-| `gg` / `G` | jump top / bottom |
+| `t` / `b` | jump top / bottom |
 | `d` | toggle delete on current message (auto-pairs tool_use/result) |
 | `v` | start visual range selection |
 | `s` | save |
 | `q` | back to list |
 
+## Non-interactive CLI (LLM-friendly)
+
+Every operation is also available as a subcommand with structured output, so other agents (Claude Code, Codex, scripts, CI) can drive the editor without a human at the terminal.
+
+```sh
+cc-session list --json [--project <slug>] [--limit N]
+cc-session show <id-or-path> [--json] [--full] [--include-hidden]
+cc-session info <id-or-path> [--json]
+cc-session delete <id-or-path> --indices 3,5,7 [--from-top N] [--from-bottom N] [--range lo..hi] [--dry-run] [--force] [--json]
+```
+
+`<id-or-path>` accepts a full path, a session UUID, or a unique substring of one. Indices are 0-based positions in the raw JSONL (use `cc-session show --json` to map text → index). Auto-pair always extends the delete set to keep `tool_use`/`tool_result` blocks together; `paired_added` in the output reports what was added.
+
+### Example LLM workflow
+
+```sh
+# 1. Pick a session.
+cc-session list --json --limit 5
+
+# 2. Inspect messages.
+cc-session show 20042ea8 --json
+
+# 3. Preview the edit.
+cc-session delete 20042ea8 --indices 4,6 --dry-run --json
+
+# 4. Apply.
+cc-session delete 20042ea8 --indices 4,6 --json
+```
+
+The `delete` JSON output names every key an agent needs: `requested`, `paired_added`, `after_auto_pair`, `total_messages_before`, `total_messages_after`, `dry_run`, `saved`, `backup`, `warnings`. Pair this with `--dry-run` to plan, then drop the flag to apply.
+
 ## Safety
 
 - Always closes Claude Code first. `cc-session` detects open file handles via `lsof` and refuses to save unless `--force` is passed.

src/app.rs

@@ -9,7 +9,7 @@ pub struct Config {
 
 pub enum Screen {
     List(screens::list::ListState),
-    Edit(screens::edit::EditState),
+    Edit(Box<screens::edit::EditState>),
 }
 
 pub struct App {