feat(walkthrough): guided AI walkthrough for diffs, branches, and PRs (#2572)

A diff is ordered by file path, which is almost never the order in which a change makes sense. This adds a Walkthrough surface that reorders it: the model groups related hunks into stops, explains what each group changes about behavior, and orders the stops so each builds on the last. It explains and orders; judging code stays with the existing Review action. Reviews uncommitted work (all, staged, unstaged), a branch against its base, or a pull request. Generation is always user-initiated — nothing runs on a timer, on a file change, or as a side effect of opening a panel. Invariants worth preserving: - Hunk identity is derived on the server and only there. Ids are content hashes, so an anchor that no longer resolves is proof the code it described changed, and staleness needs no heuristics. The client matches ids to ids and never recomputes them; two implementations would have to agree forever. - The digest is never truncated. A diff that does not fit the model's context is refused with an actionable reason, because a walkthrough written against half a diff reads as confident and is wrong. - Nothing disappears. Lockfiles and other generated output are excluded from the model's input by name — never by size — and everything no stop covers is listed at the end, so "have I seen all of it" stays answerable. - Cost is explicit. Results are content-addressed, so returning the working tree to an earlier state costs nothing; generation outlives its request, so a refresh detaches the client rather than discarding paid-for work, and only an explicit cancel stops it. Supporting changes to shared modules: - git: expose the existing getRangeDiff as GET /api/git listUntrackedPaths and getUntrackedDiffs. The latter resolve the repository once for a batch instead of per file, taking a panel ~340ms on an 80-file working tree. - small-model: structured output across four wire forma and abort signal, and an onOverflow policy so an oversized prompt fails loudly instead of being silently clipped. A provider remembered so the prompt-side fallback goes first next time. - models.dev metadata: surface structured_output as tri false blocks a model, a missing field does not, because the catalog omits it for roughly half of all models. Desktop and tablet only: VS Code serves Git through its these routes, and the mobile shell does not consume the surface registry. Docs: packages/docs walkthrough page in English and all eight locales.
2026-08-02 16:22:55 +03:00
parent b1ec34162e
commit 34d0ff7383
99 changed files with 7316 additions and 53 deletions
@@ -192,6 +192,7 @@ export const iconSpriteData = {
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  "robot-2": `<path d="M13.5 2C13.5 2.44425 13.3069 2.84339 13 3.11805V5H18C19.6569 5 21 6.34315 21 8V18C21 19.6569 19.6569 21 18 21H6C4.34315 21 3 19.6569 3 18V8C3 6.34315 4.34315 5 6 5H11V3.11805C10.6931 2.84339 10.5 2.44425 10.5 2C10.5 1.17157 11.1716 0.5 12 0.5C12.8284 0.5 13.5 1.17157 13.5 2ZM6 7C5.44772 7 5 7.44772 5 8V18C5 18.5523 5.44772 19 6 19H18C18.5523 19 19 18.5523 19 18V8C19 7.44772 18.5523 7 18 7H13H11H6ZM2 10H0V16H2V10ZM22 10H24V16H22V10ZM9 14.5C9.82843 14.5 10.5 13.8284 10.5 13C10.5 12.1716 9.82843 11.5 9 11.5C8.17157 11.5 7.5 12.1716 7.5 13C7.5 13.8284 8.17157 14.5 9 14.5ZM15 14.5C15.8284 14.5 16.5 13.8284 16.5 13C16.5 12.1716 15.8284 11.5 15 11.5C14.1716 11.5 13.5 12.1716 13.5 13C13.5 13.8284 14.1716 14.5 15 14.5Z" fill="currentColor"/>`,
  "rocket": `<path d="M4.99958 12.9999C4.99958 7.91198 7.90222 3.5636 11.9996 1.81799C16.0969 3.5636 18.9996 7.91198 18.9996 12.9999C18.9996 13.8229 18.9236 14.6264 18.779 15.4027L20.7194 17.2353C20.8845 17.3913 20.9238 17.6389 20.815 17.8383L18.3196 22.4133C18.1873 22.6557 17.8836 22.7451 17.6412 22.6128C17.5993 22.59 17.5608 22.5612 17.5271 22.5274L15.2925 20.2928C15.1049 20.1053 14.8506 19.9999 14.5854 19.9999H9.41379C9.14857 19.9999 8.89422 20.1053 8.70668 20.2928L6.47209 22.5274C6.27683 22.7227 5.96025 22.7227 5.76498 22.5274C5.73122 22.4937 5.70246 22.4552 5.67959 22.4133L3.18412 17.8383C3.07537 17.6389 3.11464 17.3913 3.27975 17.2353L5.22014 15.4027C5.07551 14.6264 4.99958 13.8229 4.99958 12.9999ZM6.47542 19.6957L7.29247 18.8786C7.85508 18.316 8.61814 17.9999 9.41379 17.9999H14.5854C15.381 17.9999 16.1441 18.316 16.7067 18.8786L17.5237 19.6957L18.5056 17.8955L17.4058 16.8568C16.9117 16.3901 16.6884 15.7045 16.8128 15.0364C16.9366 14.3722 16.9996 13.6911 16.9996 12.9999C16.9996 9.13037 15.0045 5.69965 11.9996 4.04033C8.99462 5.69965 6.99958 9.13037 6.99958 12.9999C6.99958 13.6911 7.06255 14.3722 7.18631 15.0364C7.31078 15.7045 7.08746 16.3901 6.59338 16.8568L5.49353 17.8955L6.47542 19.6957ZM11.9996 12.9999C10.895 12.9999 9.99958 12.1045 9.99958 10.9999C9.99958 9.89537 10.895 8.99994 11.9996 8.99994C13.1041 8.99994 13.9996 9.89537 13.9996 10.9999C13.9996 12.1045 13.1041 12.9999 11.9996 12.9999Z" fill="currentColor"/>`,
+  "route": `<path d="M4 15V8.5C4 6.01472 6.01472 4 8.5 4C10.9853 4 13 6.01472 13 8.5V15.5C13 16.8807 14.1193 18 15.5 18C16.8807 18 18 16.8807 18 15.5V8.82929C16.8348 8.41746 16 7.30622 16 6C16 4.34315 17.3431 3 19 3C20.6569 3 22 4.34315 22 6C22 7.30622 21.1652 8.41746 20 8.82929V15.5C20 17.9853 17.9853 20 15.5 20C13.0147 20 11 17.9853 11 15.5V8.5C11 7.11929 9.88071 6 8.5 6C7.11929 6 6 7.11929 6 8.5V15H9L5 20L1 15H4ZM19 7C19.5523 7 20 6.55228 20 6C20 5.44772 19.5523 5 19 5C18.4477 5 18 5.44772 18 6C18 6.55228 18.4477 7 19 7Z" fill="currentColor"/>`,
  "save-3": `<path d="M18 19H19V6.82843L17.1716 5H16V9H7V5H5V19H6V12H18V19ZM4 3H18L20.7071 5.70711C20.8946 5.89464 21 6.149 21 6.41421V20C21 20.5523 20.5523 21 20 21H4C3.44772 21 3 20.5523 3 20V4C3 3.44772 3.44772 3 4 3ZM8 14V19H16V14H8Z" fill="currentColor"/>`,
  "scales-3": `<path d="M12.9985 2L12.9979 3.278L17.9985 4.94591L21.631 3.73509L22.2634 5.63246L19.2319 6.643L22.3272 15.1549C21.2353 16.2921 19.6996 17 17.9985 17C16.2975 17 14.7618 16.2921 13.6699 15.1549L16.7639 6.643L12.9979 5.387V19H16.9985V21H6.99854V19H10.9979V5.387L7.23192 6.643L10.3272 15.1549C9.23528 16.2921 7.69957 17 5.99854 17C4.2975 17 2.76179 16.2921 1.66992 15.1549L4.76392 6.643L1.73363 5.63246L2.36608 3.73509L5.99854 4.94591L10.9979 3.278L10.9985 2H12.9985ZM17.9985 9.10267L16.04 14.4892C16.628 14.8201 17.2979 15 17.9985 15C18.6992 15 19.3691 14.8201 19.957 14.4892L17.9985 9.10267ZM5.99854 9.10267L4.04004 14.4892C4.62795 14.8201 5.29792 15 5.99854 15C6.69916 15 7.36912 14.8201 7.95703 14.4892L5.99854 9.10267Z" fill="currentColor"/>`,
  "scan-2": `<path d="M5.67127 4.25705L13.4142 12L12 13.4142L8.55382 9.96803C8.20193 10.5635 8 11.2582 8 12C8 14.2091 9.79086 16 12 16C14.2091 16 16 14.2091 16 12C16 9.87494 14.3429 8.13693 12.2503 8.00771L10.4459 6.20323C10.9416 6.07067 11.4625 6 12 6C15.3137 6 18 8.68629 18 12C18 15.3137 15.3137 18 12 18C8.68629 18 6 15.3137 6 12C6 10.7042 6.41079 9.50428 7.10925 8.52347L5.68014 7.09436C4.62708 8.44904 4 10.1513 4 12C4 16.4183 7.58172 20 12 20C16.4183 20 20 16.4183 20 12C20 7.58172 16.4183 4 12 4C10.8915 4 9.83557 4.22547 8.8757 4.63306L7.37443 3.13179C8.75768 2.40883 10.3311 2 12 2C17.5228 2 22 6.47715 22 12C22 17.5228 17.5228 22 12 22C6.47715 22 2 17.5228 2 12C2 8.87842 3.43029 6.09091 5.67127 4.25705Z" fill="currentColor"/>`,