chore: merge 7 upstream commits from anthropics/claude-code-action

Conflicts resolved:
- docs/usage.md: kept fork's `platform` row, added upstream's new
  `classify_inline_comments` row, updated `allowed_bots` description
  with upstream's security warning
- src/create-prompt/index.ts: kept fork's DISALLOWED_TOOLS export
  (consumed by run.ts) vs upstream's dead-code comment
- src/modes/tag/index.ts: merged both fork's userAllowedTools and
  upstream's gitPushWrapper variable (both needed by shared code)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

test/trigger-validation.test.ts

@@ -35,6 +35,7 @@ describe("checkContainsTrigger", () => {
           labelTrigger: "",
           branchPrefix: "claude/",
           useStickyComment: false,
+          classifyInlineComments: true,
           useCommitSigning: false,
           allowedBots: "",
         },
@@ -63,6 +64,7 @@ describe("checkContainsTrigger", () => {
           labelTrigger: "",
           branchPrefix: "claude/",
           useStickyComment: false,
+          classifyInlineComments: true,
           useCommitSigning: false,
           allowedBots: "",
         },
@@ -275,6 +277,7 @@ describe("checkContainsTrigger", () => {
           labelTrigger: "",
           branchPrefix: "claude/",
           useStickyComment: false,
+          classifyInlineComments: true,
           useCommitSigning: false,
           allowedBots: "",
         },
@@ -304,6 +307,7 @@ describe("checkContainsTrigger", () => {
           labelTrigger: "",
           branchPrefix: "claude/",
           useStickyComment: false,
+          classifyInlineComments: true,
           useCommitSigning: false,
           allowedBots: "",
         },
@@ -333,6 +337,7 @@ describe("checkContainsTrigger", () => {
           labelTrigger: "",
           branchPrefix: "claude/",
           useStickyComment: false,
+          classifyInlineComments: true,
           useCommitSigning: false,
           allowedBots: "",
         },