docs(sphinx): redirect the remaining pre-10.0 pages and the retired preview page

The Wayback Machine's capture list for sdk.pinecone.io/python/ and the
old working-with-indexes toctree turn up five more pages the first pass
missed: the four db_control index guides (serverless, pod, shared
actions, shared configs) and reference/preview.html, which shipped with
the 10.0 release candidates and went away when the preview namespace
graduated. The preview stub points at the migration guide's section on
that removal.

The class-anchor remap now only runs for stubs that forward into
reference/, which is the only place those anchors ever appeared, and a
target that names its own section keeps it rather than having the old
fragment appended after it.

Author: jhamon

docs/_templates/redirect.html

@@ -10,10 +10,10 @@
   var target = "${to_uri}";
   var hash = window.location.hash;
   // Classes that were renamed or moved to a different page in 10.0. Each row is
-  // the old autodoc id, the page the class now lives on, and its new id. A hash
-  // is either the class id itself or that id followed by ".<member>", and the
-  // member name is kept. Old ids are unique across the old pages, so one table
-  // serves every redirect stub.
+  // the old autodoc id, the reference/ page the class now lives on, and its new
+  // id. A hash is either the class id itself or that id followed by ".<member>",
+  // and the member name is kept. Old ids are unique across the old pages, so
+  // one table serves every stub that forwards into reference/.
   var classes = [
     ["pinecone.db_data.Index", "sync-index.html", "pinecone.index.Index"],
     ["pinecone.db_data.IndexAsyncio", "async-index.html", "pinecone.async_client.async_index.AsyncIndex"],
@@ -34,12 +34,15 @@
     "grpc.html#db-data-plane": "grpc.html"
   };
   var page = window.location.pathname.split("/").pop();
-  var dir = target.substring(0, target.lastIndexOf("/") + 1);
+  var dir = "reference/";
   var moved = sections[page + hash];
-  if (moved) {
+  if (target.indexOf("#") !== -1) {
+    // The target names its own section; the old fragment has nothing to add.
+    hash = "";
+  } else if (moved) {
     target = dir + moved;
     hash = "";
-  } else if (hash) {
+  } else if (hash && target.indexOf(dir) === 0) {
     var id = hash.substring(1);
     for (var i = 0; i < classes.length; i++) {
       var oldId = classes[i][0];

docs/conf.py

@@ -51,8 +51,15 @@
     "client-configuration": "getting-started/authentication.html",
     "working-with-indexes": "how-to/indexes/serverless.html",
     "db_control/collections": "../how-to/collections.html",
+    "db_control/serverless-indexes": "../how-to/indexes/serverless.html",
+    "db_control/pod-indexes": "../how-to/indexes/pod.html",
+    "db_control/shared-index-actions": "../how-to/indexes/serverless.html",
+    "db_control/shared-index-configs": "../how-to/indexes/serverless.html",
     "db_data/index-usage-byov": "../how-to/vectors/upsert-and-query.html",
     "inference/inference-api": "../how-to/inference/embeddings.html",
+    # Published with the 10.0 release candidates, removed when the preview
+    # namespace graduated.
+    "reference/preview": "../migration/v10-migration.html#preview-namespace-removed",
 }
 
 exclude_patterns = [