phase 1: stop the bleeding — untrack 91 files, add verifier, harden CI

- Remove 91 tracked-but-gitignored files from index (sessions, plugin
  data/manifests, pycache, memory-changes, obsidian state, credential
  notes). Disk files preserved via --cached.
- Add .gitignore rules: .qmd/, .memory-index.lock, *.sqlite-wal/shm,
  13 credential note paths.
- Remove filename-blacklist ignore patterns (**/*password*.md etc.)
  that caught nothing and misfired on normal notes.
- Add .scripts/verify-vault.mjs: scans git-tracked files for key
  patterns (sk-*, AKIA*, gh[pousr]_*, glpat-*, xox*, BEGIN PRIVATE
  KEY) and 64-char hex in plugin .json files.
- Add verifier step to CI lint workflow before dependency install.

.obsidian/plugins/easy-typing-obsidian/data.json

@@ -1,64 +0,0 @@
-{
-  "Tabout": true,
-  "SelectionEnhance": true,
-  "IntrinsicSymbolPairs": true,
-  "BaseObEditEnhance": true,
-  "FW2HWEnhance": true,
-  "BetterCodeEdit": true,
-  "BetterBackspace": true,
-  "AutoFormat": true,
-  "ExcludeFiles": "",
-  "ChineseEnglishSpace": true,
-  "ChineseNumberSpace": true,
-  "EnglishNumberSpace": true,
-  "ChineseNoSpace": true,
-  "QuoteSpace": true,
-  "PunctuationSpace": true,
-  "AutoCapital": true,
-  "AutoCapitalMode": "typing",
-  "PunctuationSpaceMode": "typing",
-  "InlineCodeSpaceMode": 1,
-  "InlineFormulaSpaceMode": 1,
-  "InlineLinkSpaceMode": 1,
-  "InlineLinkSmartSpace": true,
-  "UserDefinedRegSwitch": true,
-  "UserDefinedRegExp": "{{.*?}}|++\n<.*?>|--\n\\[\\!.*?\\][-+]{0,1}|-+\n(file:///|https?://|ftp://|obsidian://|zotero://|www.)[^\\s（）《》。,，！？;；：“”‘’\\)\\(\\[\\]\\{\\}']+|--\n\n[a-zA-Z0-9_\\-.]+@[a-zA-Z0-9_\\-.]+|++\n(?<!#)#[\\u4e00-\\u9fa5\\w-\\/]+|++",
-  "debug": false,
-  "userSelRepRuleTrigger": [
-    "-",
-    "#"
-  ],
-  "userSelRepRuleValue": [
-    {
-      "left": "~~",
-      "right": "~~"
-    },
-    {
-      "left": "#",
-      "right": " "
-    }
-  ],
-  "userDeleteRulesStrList": [
-    [
-      "demo|",
-      "|"
-    ]
-  ],
-  "userConvertRulesStrList": [
-    [
-      ":)|",
-      "😀|"
-    ]
-  ],
-  "userSelRuleSettingsOpen": true,
-  "userDelRuleSettingsOpen": true,
-  "userCvtRuleSettingsOpen": true,
-  "StrictModeEnter": false,
-  "StrictLineMode": "enter_twice",
-  "EnhanceModA": false,
-  "TryFixChineseIM": true,
-  "PuncRectify": false,
-  "FixMacOSContextMenu": false,
-  "TryFixMSIME": false,
-  "CollapsePersistentEnter": false
-}

.obsidian/plugins/easy-typing-obsidian/manifest.json

@@ -1,11 +0,0 @@
-{
-	"id": "easy-typing-obsidian",
-	"name": "Easy Typing",
-	"version": "6.0.9",
-	"minAppVersion": "0.15.0",
-	"description": "This plugin aims to enhance and optimize the editing experience in Obsidian",
-	"author": "yaozhuwa",
-	"authorUrl": "https://github.com/Yaozhuwa",
-	"isDesktopOnly": false,
-	"fundingUrl": "https://www.buymeacoffee.com/yaozhuwa"
-}