[PR] feat(conversation-view): show where a model call's history changed [skywalking-horizon-ui]

["wu-sheng (via GitHub)" <gi...@apache.org>]

wu-sheng opened a new pull request, #202:
URL: https://github.com/apache/skywalking-horizon-ui/pull/202

   ## Problem
   
   The AI Sessionizer now records each model call's message list and compares it with the call before it in its stream
   (apache/skywalking-ai-sessionizer#76, #77). Where a history changed, as when an application trims the history it
   sends, the document holds a `history.change` step just before the call. The renderer drew it as an unknown kind.
   
   The Prompt tab's second mode also compared two request bodies by position. A Claude Code 2.1.302 request that
   continues a provider thread holds only its new messages, so the tab reported every such request as a rewritten
   history, or as "the context was replaced by a summary here: 20 message(s) became 2".
   
   ## Change
   
   - **The card.** `history.change` is a kind of its own: dashed, in `--acv-kind-history`, a hue between the first and
     fourth series colours that no other kind uses. Its line gives the counts and what else changed
     (`view/history.ts`). A count the card does not carry is not shown as zero. A click on the card, in the transcript
     or on the timeline, selects the call it stands before (`ConversationModel.target`), or the card itself when the
     document has no such call. The card takes its call's place in document order, just before it. A comparator that
     only put the card before its call was not transitive with the call's own message at the same record.
   - **"What changed"** (`view/prompt.ts`) says what the call's attributes say: kept, changed, first, not compared, or
     unavailable with the reason.
     - A kept history shows the messages this call added, by place. The body must hold what its manifest lists, and
       only a thread continue takes an offset.
     - A changed history marks each message kept, changed or added, by the same counts the card gives, and lists the
       messages dropped from the call before. With an id twice in a list, or two messages of one digest and no id,
       which earlier message became which is not known, so only the counts are shown. With a thread, the bodies hold
       part of each history, so only the counts are shown too.
     - A first call after an `epoch.boundary` says the context was reset there, "and replaced by a summary" only when
       the boundary has a `summarizes` relation. A call between the two is the framework's own, so it does not hide a
       reset.
     - The tools are not compared when either request continues a provider thread, since such a request sends none.
       The settings leave out `metadata`, `thread` and `diagnostics`.
   - **The prompt store** reads a request's list as the Sessionizer reads it (`PromptStore.listOf`): exactly one of
     `entries`, `base`/`keep`/`add` and `unavailable`, every field of its type, a base that is an earlier request of the
     same form holding what is kept, digests in either case.
   - `deltaOf` and the message-shape comparison only it used are removed.
   - **Strings:** 29 new texts in `strings.ts`, `conversationStrings.ts` and all eight locales; five unused ones removed.
   - **Docs:** the 1.1.0 changelog and the AI Agent Conversations guide.
   
   ## Checked
   
   - The package type check and its 161 unit tests pass. `test/prompt-history.test.ts` runs on three documents the
     Sessionizer built from its scenarios `history-forget`, `history-threads` and `provider-bodies`, with their provider
     files. It covers the card's place, colour, line and click; each mode of "What changed"; the reset text; the marks,
     including ambiguous pairings and a 65,536-message history; and the store's reading of lists. Every guard was proven
     by reverting it and seeing its test fail.
   - `apps/ui` passes `vue-tsc` and its unit tests. The lint run passes, including the i18n, source budget, design
     token, security and docs links checks.
   


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Re: [PR] feat(conversation-view): show where a model call's history changed [skywalking-horizon-ui]

["wu-sheng (via GitHub)" <gi...@apache.org>]

wu-sheng merged PR #202:
URL: https://github.com/apache/skywalking-horizon-ui/pull/202


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