Remove ticket 044 (implemented: ottyl_fmt param + ottyl_seq/ottyl_ts rename)

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XFUNZwCvz3kcod3352ZR2o

tickets/044-ottyl-fmt-reserved-param-and-renames.md

@@ -1,48 +0,0 @@
-# 044 — Add `ottyl_fmt` reserved param; rename `sequence`/`timestamp` to `ottyl_seq`/`ottyl_ts`
-
-## Summary
-
-`sequence` and `timestamp` are handled as reserved query metric names in the
-filter grammar (`src/filter_parser.rs`, e.g. `parses_reserved_metric_sequence`,
-`parses_reserved_metric_timestamp_as_raw_value`) and in alert evaluation
-(`src/alerts.rs:199,208`, restricted per the comment at `src/alerts.rs:3` to
-`regex/sequence/timestamp/json[field]`), backed by `LogLine { sequence,
-timestamp_ms }` in `src/dto.rs:11-12`. These names collide with ordinary
-user-declared params and don't signal that they're ottyl-owned. Separately,
-there is currently no reserved param exposing which format
-(`auto_declare_params`/`auto_derived`, `src/engine.rs` and `src/logfmt.rs`,
-added in "Auto derived format") was used to parse a given log line — that
-information is computed but not surfaced as a queryable/orderable param.
-
-## Scope
-
-- Add a new reserved param `ottyl_fmt`: a text-enum value recording which
-  format a line was derived with (e.g. auto-detected key=value/logfmt vs.
-  JSON vs. plain/none), populated wherever `auto_declare_params`/format
-  detection currently runs (`src/engine.rs`, `src/logfmt.rs`).
-- Rename the reserved metric names `sequence` → `ottyl_seq` and
-  `timestamp` → `ottyl_ts` everywhere they're recognized: filter grammar
-  (`src/filter_parser.rs`), alert query restriction and evaluation
-  (`src/alerts.rs`), and any webapp references to these literal names
-  (`webapp/src/lib/api.ts`, `webapp/src/components/LogPreview.tsx`).
-- Decide and implement backward compatibility: either accept both old and
-  new names for one release, or treat this as a breaking rename (update
-  fixtures/docs accordingly) — call this out explicitly in the PR.
-- Update any docs/help text (e.g. regex cheat sheet, param declaration UI)
-  that reference `sequence`/`timestamp` by name.
-
-## Acceptance criteria
-
-- Filters, alert queries, and metric declarations recognize `ottyl_seq`
-  and `ottyl_ts`; the old bare names either error clearly or continue to
-  work per the compatibility decision above, but are no longer the
-  documented names.
-- `ottyl_fmt` is queryable/filterable like other reserved params and its
-  value reflects the actual detected format for a given log line
-  (verified by a seeded fixture with mixed-format lines).
-- Existing tests referencing `sequence`/`timestamp` reserved metrics are
-  updated and pass.
-
-## Depends on
-
-None.