fix(filters): disable smart substitution in cell editors and filter inputs

CHANGELOG.md

@@ -42,6 +42,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Terminal PTY writes retry on `EINTR` instead of treating any non-positive return as "we're done". A signal mid-write previously truncated the input the user typed; the loop would exit silently and the keystrokes were partially sent. The new path retries on `EINTR`, logs the byte position and errno on any other non-recoverable failure, and reports a return value of zero distinctly so the cause is visible in Console.
 - MCP HTTP transport no longer writes an empty body when JSON encoding of the response envelope fails. Five sites in `MCPInboundExchange` and `MCPHttpRequestRouter` previously fell back to `Data()`, sending zero bytes to the client which then saw a protocol violation and either disconnected or hung. The encode-failure paths now log and substitute a static `{"jsonrpc":"2.0","id":null,"error":{"code":-32603,"message":"internal_error"}}` envelope; the pairing-exchange success path falls back to `internalServerError` with a small JSON error body.
 - Closing the last window for a connection no longer flashes "Connection lost" and clears that session's cached schema. The health monitor's reconnect loop previously transitioned to `.failed` when its task was cancelled (clean teardown), and the session-level observer treated `.failed` as a real error: it overwrote `session.status` with the lost-connection alert and called `clearCachedData()`. The `.failed` state was never reachable through any non-cancellation path, so it has been removed from `HealthState` along with the orphaned `resetAfterManualReconnect` reset method that only existed to reset from it. Cancellation now logs cleanly and returns without touching session state.
+- Smart-quote, dash, and text substitution no longer corrupt user input in cell editors and filter inputs. Six SwiftUI `TextField` sites (single-line cell editor, multi-line cell editor, blob hex editor, filter row second value, filter preset name, create-table table name) gain `.autocorrectionDisabled(true)`, and the AppKit `FilterValueTextField` now subclasses `NSTextField` to disable all four substitution flags on the live field editor in `becomeFirstResponder()`. Previously the macOS field editor turned typed straight quotes into curly quotes and `--` into an em-dash, silently corrupting filter operands, identifiers, and edited cell values.
 - Connecting one window no longer triggers `fetchTables()` in every other window for an unrelated connection. Three subscribers to `AppEvents.databaseDidConnect` (`MainContentCommandActions`, `MainContentCoordinator`'s plugin-driver retry, and `ERDiagramViewModel.waitForConnection`) discarded the `connectionId` payload that was already on the event and acted on their own connection. With three windows open against three different databases, opening a fourth caused nine `fetchTables()` calls; if the existing remotes were slow, every window stalled until the new connection's broadcast was processed. Subscribers now compare the payload's `connectionId` against their own and skip otherwise. The ER diagram view also stops resuming `waitForConnection` when an unrelated database connects, which previously made the diagram fail with "No database connection" instead of waiting for its own driver.
 - Result-grid cells on rows marked for deletion keep their dropdown / date / JSON / blob chevron visible at reduced opacity instead of hiding it, so the cell type is still legible while clearly inactive. Click on the dimmed chevron is a no-op; FK arrow navigation is unchanged. Matches the macOS HIG "disabled appearance" guideline.
 - Foreign key navigation from a table with unsaved edits opens the referenced table in a new window tab to preserve the edit buffer. Closing that new tab no longer wipes the original tab's data grid. Previously the new tab's teardown broadcast a connection-scoped event that other coordinators on the same connection received, causing them to release their cell data.

TablePro/Views/Filter/FilterPanelView.swift

@@ -98,6 +98,7 @@ struct FilterPanelView: View {
         .contentShape(Rectangle())
         .alert(String(localized: "Save Filter Preset"), isPresented: $showSavePresetAlert) {
             TextField(String(localized: "Preset Name"), text: $newPresetName)
+                .autocorrectionDisabled(true)
             Button("Cancel", role: .cancel) {}
             Button("Save") {
                 guard !newPresetName.isEmpty else { return }

TablePro/Views/Filter/FilterRowView.swift

@@ -102,6 +102,7 @@ struct FilterRowView: View {
                 .textFieldStyle(.roundedBorder)
                 .controlSize(.small)
                 .font(.callout)
+                .autocorrectionDisabled(true)
                 .frame(minWidth: 80)
                 .accessibilityLabel(String(localized: "Second filter value"))
                 .onSubmit { onSubmit() }

TablePro/Views/Filter/FilterValueTextField.swift

@@ -27,7 +27,7 @@ struct FilterValueTextField: NSViewRepresentable {
     }
 
     func makeNSView(context: Context) -> NSTextField {
-        let textField = NSTextField()
+        let textField = SubstitutionDisabledTextField()
         textField.bezelStyle = .roundedBezel
         textField.controlSize = .small
         textField.font = .systemFont(ofSize: 12)
@@ -291,6 +291,19 @@ struct FilterValueTextField: NSViewRepresentable {
         }
     }
 
+    private final class SubstitutionDisabledTextField: NSTextField {
+        override func becomeFirstResponder() -> Bool {
+            let result = super.becomeFirstResponder()
+            if result, let editor = currentEditor() as? NSTextView {
+                editor.isAutomaticQuoteSubstitutionEnabled = false
+                editor.isAutomaticDashSubstitutionEnabled = false
+                editor.isAutomaticTextReplacementEnabled = false
+                editor.isAutomaticSpellingCorrectionEnabled = false
+            }
+            return result
+        }
+    }
+
     @MainActor
     private final class SuggestionState: ObservableObject {
         @Published var items: [String] = []

TablePro/Views/RightSidebar/FieldEditors/BlobHexEditorView.swift

@@ -35,6 +35,7 @@ internal struct BlobHexEditorView: View {
                 .textFieldStyle(.roundedBorder)
                 .font(.system(.caption2, design: .monospaced))
                 .lineLimit(3...8)
+                .autocorrectionDisabled(true)
                 .focused($isFocused)
                 .onAppear {
                     hexEditText = BlobFormattingService.shared.format(context.value.wrappedValue, for: .edit) ?? ""

TablePro/Views/RightSidebar/FieldEditors/MultiLineEditorView.swift

@@ -15,6 +15,7 @@ internal struct MultiLineEditorView: View {
             .textFieldStyle(.roundedBorder)
             .font(.subheadline)
             .lineLimit(3...6)
+            .autocorrectionDisabled(true)
             .focused($isFocused)
             .disabled(context.isReadOnly)
     }

TablePro/Views/RightSidebar/FieldEditors/SingleLineEditorView.swift

@@ -14,6 +14,7 @@ internal struct SingleLineEditorView: View {
         TextField(context.placeholderText, text: context.value)
             .textFieldStyle(.roundedBorder)
             .font(.subheadline)
+            .autocorrectionDisabled(true)
             .focused($isFocused)
             .disabled(context.isReadOnly)
     }

TablePro/Views/Structure/CreateTableView.swift

@@ -97,6 +97,7 @@ struct CreateTableView: View {
 
             TextField("Enter table name", text: $tableName)
                 .textFieldStyle(.roundedBorder)
+                .autocorrectionDisabled(true)
                 .frame(maxWidth: 300)
 
             if showMySQLOptions {