feat(tools): make repo the canonical repo-identifier arg; name now an alias (#38)

Every caller (claude.ai connector, LLMs primed on gitea/GitHub) sends the repo
identifier as `repo`, but the 33 per-repo identifier tools advertised `name`.
The v0.2.8 shim aliased repo->name so it worked, yet the advertised inputSchema
still said `name` — a misleading contract, with the shim load-bearing.

- Flip all 33 identifier tools: schema property + required + struct field/tag
  from `name` to `repo`. A compliant `repo` caller now matches the struct
  directly; the shim is pure back-compat.
- normalizeAliases is now bidirectional (name<->repo), so legacy `name` callers
  still resolve, and repo_create / create_project_from_template — whose `name`
  means "name of the NEW repo", not an existing-repo id — keep `name` and still
  accept `repo`.
- `number`/`index` left as-is (out of scope; separate pre-existing quirk where
  pr_merge advertises `index` rather than `number`).
- Tests: schema-canonical assertion + flipped alias round-trip (explicit `repo`
  wins over `name`).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

internal/tools/repo_update.go

@@ -29,7 +29,7 @@ func (t *RepoUpdate) Descriptor() registry.ToolDescriptor {
 			"type":"object",
 			"properties":{
 				"owner":{"type":"string"},
-				"name":{"type":"string"},
+				"repo":{"type":"string"},
 				"description":{"type":"string"},
 				"private":{"type":"boolean","description":"Toggle visibility. false makes the repo public."},
 				"website":{"type":"string","description":"Homepage URL"},
@@ -38,14 +38,14 @@ func (t *RepoUpdate) Descriptor() registry.ToolDescriptor {
 				"template":{"type":"boolean","description":"Toggle template-repo flag"},
 				"confirm":{"type":"string","description":"Required when setting private=false. Must equal the repo name."}
 			},
-			"required":["owner","name"]
+			"required":["owner","repo"]
 		}`),
 	}
 }
 
 type repoUpdateArgs struct {
 	Owner         string  `json:"owner"`
-	Name          string  `json:"name"`
+	Repo          string  `json:"repo"`
 	Description   *string `json:"description,omitempty"`
 	Private       *bool   `json:"private,omitempty"`
 	Website       *string `json:"website,omitempty"`
@@ -66,8 +66,8 @@ func (t *RepoUpdate) Call(ctx context.Context, raw json.RawMessage) (json.RawMes
 
 	// Making a repo public is a significant action — require explicit confirmation.
 	if args.Private != nil && !*args.Private {
-		if args.Confirm != args.Name {
-			return nil, fmt.Errorf("setting private=false makes the repo public: set confirm=%q to proceed", args.Name)
+		if args.Confirm != args.Repo {
+			return nil, fmt.Errorf("setting private=false makes the repo public: set confirm=%q to proceed", args.Repo)
 		}
 	}
 
@@ -76,7 +76,7 @@ func (t *RepoUpdate) Call(ctx context.Context, raw json.RawMessage) (json.RawMes
 		return nil, fmt.Errorf("at least one updatable field must be set: %w", gitea.ErrValidation)
 	}
 
-	r, err := t.c.UpdateRepo(ctx, args.Owner, args.Name, gitea.UpdateRepoArgs{
+	r, err := t.c.UpdateRepo(ctx, args.Owner, args.Repo, gitea.UpdateRepoArgs{
 		Description:   args.Description,
 		Private:       args.Private,
 		Website:       args.Website,