feat(aura-cli): aura run --real <SYMBOL> backtests the sample on real M1 bars

The first real-data backtest from the CLI: `aura run --real <SYMBOL>
[--from <ms>] [--to <ms>]` runs the existing built-in sample signal-quality
harness over real M1 *close* bars instead of synthetic prices, printing the
same RunReport JSON as `aura run`. Bars are streamed lazily through
aura_ingest::M1FieldSource (a Box<dyn Source>) — dogfooding the #71 Source
seam, O(one chunk) resident, never eager. aura-ingest + data-server enter
aura-cli's deps (data-server git line mirrored from aura-ingest).

M1 only this cycle, deliberately. The TickSource is deferred: raw ticks are
the wrong input for the bar-semantic SMA sample (an SMA over ticks is
microstructure noise until a resampler node exists, C2), and tick's real
driver is the realistic broker's bid/ask execution (C10) — it should arrive
with that consumer, not speculatively here. Tick data is also local to only
EURUSD/XAUUSD/GER40, whereas M1 covers the test symbol AAPL.US.

Shape: run_sample_real builds sample_harness(), guards has_symbol /
M1FieldSource::open (unknown symbol or empty window -> 'aura: no local data'
+ exit 2, never a panic), and reuses sim_optimal_manifest + the run_sample
fold. parse_real_args is a pure, unit-tested grammar (mandatory symbol, then
--from/--to in any order; bad/missing/duplicate flag -> Err). Data path is
data_server::DEFAULT_DATA_PATH (no --data-path flag this cycle).

Known simplification: the manifest window is derived by draining a *separate*
single-pass probe source for first/last ts, so an unbounded window streams
the archive twice (once to bound, once to run). Acceptable and O(1)-resident
for now; a future Harness::run could surface the first/last cycle ts to drop
the probe pass.

Verified: cargo build/test/clippy --workspace all green; the gated
run_sample_real_streams_real_close_bars_deterministically RAN (not skipped)
over AAPL.US 2006-08; manual CLI smoke of the success + two error paths.

Cargo.lock

@@ -52,8 +52,10 @@ version = "0.1.0"
 dependencies = [
  "aura-core",
  "aura-engine",
+ "aura-ingest",
  "aura-registry",
  "aura-std",
+ "data-server",
 ]
 
 [[package]]