Migrate CLI from picocli to aesh with REPL console mode

[stalep]

Replace the picocli-based single-command CLI with an aesh interactive REPL (Read-Eval-Print Loop) shell. Users can now run multiple commands in a single session with tab completion, history, and folder context.

Entity-centric command structure:
folder — add, list, remove, upload, export, import, structure,
recalculate, purge, values
node — add (jq/js/jsonata/sqlpath/sqlpathall/split/fixedthreshold/
relativedifference/stddev), list, remove, update
view — list, show, create, remove, update (--add/--remove/--reorder)
run — list, show, upload
notification — add, list, remove
legacy — load-tests, load-runs, verify
admin — create-user, create-team, add-member, list-users, list-teams,
create-api-key, list-api-keys, revoke-api-key
cd — set active folder context
upload — top-level shortcut for folder upload

Key features:

• Folder context: 'cd myFolder' sets context, subsequent commands omit --to/--from
• Tab completion for commands, folder names, and node names
• acceptNameWithoutDashes on all options (picocli-compatible syntax)
• @arguments for positional args matching original CLI syntax
• Default limit of 50 on list commands to prevent OOM
• Ctrl-C interrupt support (InterruptedException on all commands)
• generateHelp on all commands (--help shows usage)
• Views: create views, add/remove node columns, show pivoted data
• Runs: list uploads, show raw JSON data, per-node value inspection
• H5mCommandRegistryFactory filters top-level commands for clean tab completion
• Graceful startup recovery on SQLite (handles missing tables)
• Upload command awaits CompletableFuture completion before returning
• Uses aesh Table utility for formatted output
• NodeNameCompleter for node name tab completion in view/run commands