Merge pull request #1527 from colbymchenry/bugfix/CG-38

CG-38: guarantee an agent-named symbol renders, wherever it sits

CHANGELOG.md

@@ -36,6 +36,7 @@ and adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 - Every file `codegraph_explore` decides to include now actually arrives. A file shown in full could still spend room set aside for files below it — the fix above covered files shown as excerpts but not files shown whole — and the answer's own size bookkeeping under-counted each file's heading, so the answer ran past its limit and a fully prepared file was discarded at the end. A file that no longer fits whole is now shown as excerpts instead of vanishing, and one that overshoots by a little is trimmed to fit rather than dropped.
 - The list of files an answer could not cover — the "explore these names for their source" pointers — is no longer thrown away when the answer is full. It is now budgeted for and trimmed to fit, so a full answer still tells you what it left out and which names to ask for next, instead of ending with no pointers at all.
 - When a `codegraph_explore` answer shows a file as excerpts, a large excerpt that no longer fit was dropped entirely instead of being shortened. If the file's first excerpt happened to be a trivial one — an import block, a one-line helper next to the code you asked about — the excerpt carrying the actual answer was the one thrown away, and the file came back with a quarter of the room it had been given. On real projects that meant the top-ranked file delivered a fraction of its share while a far less relevant file took the rest. Excerpts are now shortened to fit, whole method by whole method, and only dropped when what is left is too small to hold anything readable.
+- When you name a symbol in a `codegraph_explore` query, its definition now actually comes back. Two cases previously lost it. If the symbols you named don't call one another — sibling functions inside the same factory or module are the everyday example — CodeGraph stopped treating them as symbols you had asked for, and answered with whatever sat at the top of their file instead; on one 1,400-line file that meant a same-stem `QueuedMessage` interface on line 70 came back while the `queueMessage` function on line 1087 did not. And when an answer had to be trimmed to fit, it was trimmed from the bottom of the file down, so a symbol near the end of a long file was always the first thing cut. Trimming now protects the definitions you named wherever they sit in the file.
 - The blast-radius section of `codegraph_explore` flagged "no covering tests found" whenever no test called a symbol directly — falsely branding helpers that tests exercise through their callers as untested (about 40% of flagged symbols in a measured sample). The check now follows caller chains up to 3 hops and reports indirect coverage as "tested via callers"; when nothing is found it states exactly what was checked instead of an unconditional warning. Thanks @inth3shadows for measuring the false-positive rate. (#1475)
 
 ## [1.5.0] - 2026-07-21