- TabloUpdateHandler: capture user from loadOwnedTablo (was discarded with _)
- Pass captured user to TabloDetailPage on non-HTMX validation error path
instead of nil, preventing broken layout (no logout button/email shown)
- TabloUpdateHandler: pass tablo.Color to UpdateTablo to preserve color on update (CR-01)
- loadOwnedTablo: pass GetTabloByIDParams{ID, UserID} to DB query (WR-01 call site)
- TabloDeleteHandler: pass DeleteTabloParams{ID, UserID} to DB query (WR-02 call site)
- TabloDeleteHandler: on DB error with HX-Request, render TabloDeleteConfirmFragment
instead of plain http.Error to avoid broken HTMX DOM state (CR-03)
- renderTabloCreateError: log secondary ListTablosByUser fetch failure (WR-03)
- TablosCreateHandler: validate color with isValidCSSColor (hex only) and surface
TabloCreateErrors.Color field error to prevent CSS injection (WR-04)
- Add isValidCSSColor helper using ^#[0-9a-fA-F]{3}([0-9a-fA-F]{3})?$ regex
- Update test call sites for GetTabloByID and DeleteTablo new param types
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
- loadOwnedTablo helper: uuid.Parse, GetTabloByID, ownership check (D-04: 404 not 403)
- TabloDetailHandler: GET /tablos/{id} renders detail page
- TabloEditTitleHandler/ShowTitleHandler: GET /tablos/{id}/edit-title|show-title fragments
- TabloEditDescHandler/ShowDescHandler: GET /tablos/{id}/edit-desc|show-desc fragments
- TabloUpdateHandler: POST /tablos/{id} — validates, updates DB, renders matching zone fragment
- TabloDeleteConfirmHandler/CancelHandler: GET /tablos/{id}/delete-confirm|delete-cancel
- TabloDeleteHandler: POST /tablos/{id}/delete — deletes row, HX-Redirect:/ or 303
- router.go: 9 new routes in RequireAuth group, static-before-parametric order preserved
- Fix [Rule 1 - Bug]: test title "Owner's Tablo" caused HTML entity mismatch — changed to "Owners Detail Tablo"
- go test ./internal/web/... -run TestTablo: 10/10 PASS; full suite: all PASS
