feat(cli): chart resolves a --trace family by its chosen campaign name (#238)

The NotFound arm of emit_chart now queries the recorded campaign runs:
records with a persisted trace_name whose stored campaign document
carries name == ARG. A unique match re-dispatches the existing charting
path onto the resolved handle; several matches refuse listing the
candidate handles in append order (refuse-don't-guess — re-running a
named invocation legitimately yields {campaign8}-0, -1, ...); zero
matches keep the not-found message verbatim. The exact trace-store
handle always wins; the name never becomes a store key (C18 untouched).
Guide §3 and the glossary tap entry document the name alternative.

closes #238

docs/authoring-guide.md

@@ -588,4 +588,7 @@ is non-empty, the run also persists the named taps under
 `runs/traces/<trace_name>/…`, chartable with `aura chart`. The
 `sweep`/`walkforward --trace` analog persists every member's taps as a
 family charted the same way, by the handle the run prints (members keyed
-`<cell>/<member>`).
+`<cell>/<member>`) — also by the `--trace <NAME>` you chose, when that name
+uniquely names one recorded run (`aura chart <NAME>` resolves it against the
+stored campaign documents; a name reused across runs refuses rather than
+guessing which one you mean).

docs/glossary.md

@@ -307,7 +307,7 @@ An orchestration axis varying tuning params (grid or random) within a fixed stru
 
 ### tap
 **Avoid:** —
-A named recorded stream produced by a recording `sink` — the addressable label (e.g. `equity`, `net_r_equity`) under which one sink's per-cycle output is persisted as a columnar (SoA) `ColumnarTrace` and selected for charting via `--tap`. Distinct from the `sink` node that emits it (a tap is the stream, the sink is the role) and from a whole recorded run (a bundle of taps); taps fire at their own cadences and are fused only by joining on the recorded timestamp, never by positional index. In a `campaign document`, `persist_taps` names taps from the CLOSED vocabulary `equity | exposure | r_equity | net_r_equity` (`tap_vocabulary`, 0109/#201) — a new observable is a new vocabulary entry or an authored blueprint sink, never an open node-path namespace. Persisted taps are charted by the printed handle: a campaign run's via the record's `trace_name`, a `sweep`/`walkforward --trace` family's via the family handle the run prints (`aura chart <handle>`; its members are keyed `<cell>/<member>` in the chart).
+A named recorded stream produced by a recording `sink` — the addressable label (e.g. `equity`, `net_r_equity`) under which one sink's per-cycle output is persisted as a columnar (SoA) `ColumnarTrace` and selected for charting via `--tap`. Distinct from the `sink` node that emits it (a tap is the stream, the sink is the role) and from a whole recorded run (a bundle of taps); taps fire at their own cadences and are fused only by joining on the recorded timestamp, never by positional index. In a `campaign document`, `persist_taps` names taps from the CLOSED vocabulary `equity | exposure | r_equity | net_r_equity` (`tap_vocabulary`, 0109/#201) — a new observable is a new vocabulary entry or an authored blueprint sink, never an open node-path namespace. Persisted taps are charted by the printed handle: a campaign run's via the record's `trace_name`, a `sweep`/`walkforward --trace` family's via the family handle the run prints (`aura chart <handle>`; its members are keyed `<cell>/<member>` in the chart) — or, equivalently, by the `--trace <NAME>` the user chose, when `NAME` uniquely resolves against the recorded campaign documents (#238; a name reused across runs refuses rather than guessing).
 
 ### topology hash
 **Avoid:** —