v3.33.0: Edit decoded — SPN, PLMNwAcT family, ADN family, PNN

The file manager gains a client-side decoded editor.  EF_ENCODERS pairs
each editable EF with a pure encoder and a form schema (fields / list /
items); the file is read raw, the decoder fills the form, the browser
re-encodes it and the existing update path writes it.

Shapes: SPN (display-condition bits + Annex A text), PLMNwAcT/
OPLMNwAcT/HPLMNwAcT (rows with PLMN + ACT, add/remove),
ADN/FDN/SDN/MSISDN/LND/BDN (one form per record with a checkbox that
auto-checks on change; BCD, length and EXT handling; BDN's own X+15
layout) and PNN (per-record TLV items 43/45/80, add/remove, unknown
TLVs preserved).

Unchanged fields are copied verbatim (SSC/extended-BCD numbers, PLMN
rows including unmodelled satellite ACT bits, PNN codings/AddCI bits,
all-FF files, the BDN comparison-method byte), every checked record is
validated and encoded before anything is written, and edits that would
break a reference are refused.

Also: docs/decoded-editing.md (the spec survey behind the design and
the release waves), the efPlmnAct EC-GSM-IoT-only 0x88 fix, the PNN
spare-bit decode fix, and the /api/write|read cmd2-exception
false-success fix.

1022 Python + 1013 frontend green; simple-v466.

CHANGELOG.md

@@ -9,6 +9,37 @@ every change carries a descriptive commit message.
 
 ## [Unreleased]
 
+## [3.33.0] — 2026-10-23
+
+### Added
+
+- **Edit decoded** in the file manager: a file is read raw, decoded into its own editable
+  form, re-encoded in the browser and written through the normal update path.  The first
+  wave covers **EF.SPN**, **EF.PLMNwAcT / EF.OPLMNwAcT / EF.HPLMNwAcT**, the dialling-number
+  files **EF.ADN / EF.FDN / EF.SDN / EF.MSISDN / EF.LND / EF.BDN** and **EF.PNN**.  Shapes:
+  a flat transparent form (SPN), a transparent list editor with add/remove rows (PLMN+ACT),
+  per-record forms with a selection checkbox that is auto-checked when a field changes
+  (dialling numbers, PNN) and per-record TLV item rows with add/remove/edit (PNN's full and
+  short names plus the PLMN additional information).  All checked records are encoded and
+  validated before anything is written; unchanged fields, record lengths, extension
+  pointers (EF.EXT1–EXT5), the BDN comparison-method byte and unknown PNN TLVs are
+  preserved, and an edit that would break a reference (a number continued in an extension
+  file, a dropped mandatory PNN full name) is refused.
+- `docs/decoded-editing.md`: the file-format survey behind the design (every known EF
+  classified by structure/coding into the editor's shapes S0–S10, with the release waves).
+
+### Fixed
+
+- **EF.BDN** decodes and encodes with its own `X+15` layout (the trailing Comparison Method
+  Pointer); the shared ADN codec had treated it as `X+14`.
+- `efPlmnAct` decoded the EC-GSM-IoT-only ACT (`b8=1,b4=1,b3=0`, `0x0088`) as nothing while
+  checking the impossible `0x0086` (TS 31.102 Table 4.2.5.2).
+- PNN network names: the decoder now trusts a non-zero spare-bit count before the
+  "all bytes < 0x80 → uncompressed" heuristic, so a valid packed name can no longer be
+  misread (and later written back wrong).
+- `/api/write` and `/api/read` report a cmd2 exception in the captured output as a failure
+  instead of `success: true` with `SW: 9000`.
+
 ## [3.32.7] — 2026-10-23
 
 ### Removed