refactor(cli): consolidate output commands into results + query

Reduce CLI surface from 7 overlapping commands to 2 focused ones:

- `results` becomes a sub-app with subcommands: summary (default),
  timeline, segment <attr>, agent <id>. Absorbs `report run`
  functionality via agent mode JSON output.

- `query` absorbs `export` (agents/edges/states with --to for JSONL),
  `inspect` (summary/network/network-status), and gains study folder
  auto-detection (no more --study-db flag). SQL argument is now
  positional.

Delete: report.py, export.py, inspect.py, migrate.py (dead code).

Closes #72

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: 2 people

docs/commands.md

@@ -168,10 +168,6 @@ def main_callback(
     estimate,
     results,
     config_cmd,
-    inspect,
     query,
-    report,
-    export,
     chat,
-    migrate,
 )

extropy/cli/app.py

@@ -11,12 +11,8 @@
     estimate,
     results,
     config_cmd,
-    inspect,
     query,
-    report,
-    export,
     chat,
-    migrate,
 )
 
 __all__ = [
@@ -30,10 +26,6 @@
     "estimate",
     "results",
     "config_cmd",
-    "inspect",
     "query",
-    "report",
-    "export",
     "chat",
-    "migrate",
 ]